Virus.Win32.RAMNIT.DSI.orig

January 14, 2020

PLATFORM:

Windows

OVERALL RISK RATING:

REPORTED INFECTION:

Threat Type: File infector
Destructiveness: No
Encrypted:
In the wild: Yes

OVERVIEW

This File infector arrives on a system as a file dropped by other malware or as a file downloaded unknowingly by users when visiting malicious sites.

TECHNICAL DETAILS

File Size:

1,262,030 bytes

File Type:

EXE

Memory Resident:

Yes

Initial Samples Received Date:

14 Jan 2020

Arrival Details

This File infector arrives on a system as a file dropped by other malware or as a file downloaded unknowingly by users when visiting malicious sites.

Installation

This File infector adds the following processes:

%User Temp%\{malware file name}mgr.exe
%System%\cmd.exe /k %windir%\System32\reg.exe ADD HKLM\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System /v EnableLUA /t REG_DWORD /d 0 /f
%System Root%\Program Files\Internet Explorer\iexplore.exe
%System%\reg.exe ADD HKLM\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System /v EnableLUA /t REG_DWORD /d 0 /f
"%Program Files%\Internet Explorer\IEXPLORE.EXE" SCODEF:2480 CREDAT:275457 /prefetch:2
"%Program Files%\Internet Explorer\IEXPLORE.EXE" SCODEF:2480 CREDAT:406531 /prefetch:2
"%Program Files%\Internet Explorer\IEXPLORE.EXE" SCODEF:2480 CREDAT:537617 /prefetch:2
PING 127.0.0.1 -n 2
"%Application Data%\Microsoft SVHost\svchost.exe"
%Application Data%\Microsoft SVHost\svchostmgr.exe
%Program Files%\Internet Explorer\iexplore.exe
%Program Files%\Internet Explorer\iexploremgr.exe

(Note: %User Temp% is the current user's Temp folder, which is usually C:\Documents and Settings\{user name}\Local Settings\Temp on Windows 2000(32-bit), XP, and Server 2003(32-bit), or C:\Users\{user name}\AppData\Local\Temp on Windows Vista, 7, 8, 8.1, 2008(64-bit), 2012(64-bit) and 10(64-bit).. %System Root% is the Windows root folder, where it usually is C:\ on all Windows operating system versions.. %Program Files% is the default Program Files folder, usually C:\Program Files in Windows 2000(32-bit), Server 2003(32-bit), XP, Vista(64-bit), 7, 8, 8.1, 2008(64-bit), 2012(64-bit) and 10(64-bit) , or C:\Program Files (x86) in Windows XP(64-bit), Vista(64-bit), 7(64-bit), 8(64-bit), 8.1(64-bit), 2008(64-bit), 2012(64-bit) and 10(64-bit).. %Application Data% is the current user's Application Data folder, which is usually C:\Documents and Settings\{user name}\Application Data on Windows 2000(32-bit), XP, and Server 2003(32-bit), or C:\Users\{user name}\AppData\Roaming on Windows Vista, 7, 8, 8.1, 2008(64-bit), 2012(64-bit) and 10(64-bit).)

It creates the following folders:

%AppDataLocal%\Microsoft\Internet Explorer\Recovery\High\Active
%Application Data%\Microsoft\Windows\IECompatUACache
%AppDataLocal%\Microsoft\Internet Explorer\DomainSuggestions
%Application Data%\Microsoft\Windows\IECompatCache
%Application Data%\remcos
%Application Data%\Microsoft\Windows\DNTException
%Application Data%\Microsoft\Windows\PrivacIE
%Application Data%\Microsoft SVHost

(Note: %AppDataLocal% is the Local Application Data folder, which is usually C:\Documents and Settings\{user name}\Local Settings\Application Data on Windows 2000(32-bit), XP, and Server 2003(32-bit), or C:\Users\{user name}\AppData\Local on Windows Vista, 7, 8, 8.1, 2008(64-bit), 2012(64-bit) and 10(64-bit).. %Application Data% is the current user's Application Data folder, which is usually C:\Documents and Settings\{user name}\Application Data on Windows 2000(32-bit), XP, and Server 2003(32-bit), or C:\Users\{user name}\AppData\Roaming on Windows Vista, 7, 8, 8.1, 2008(64-bit), 2012(64-bit) and 10(64-bit).)

Autostart Technique

This File infector adds the following registry entries to enable its automatic execution at every system startup:

HKEY_CURRENT_USER\Software\Microsoft\
Windows\CurrentVersion\Run
Microsoft SVChost Service = "%Application Data%\Microsoft SVHost\svchost.exe"

Other System Modifications

This File infector deletes the following files:

%Application Data%\Mozilla\Firefox\Profiles\lj5mikyj.default\key3.db
%Application Data%\Mozilla\Firefox\Profiles\lj5mikyj.default\cookies.sqlite
%AppDataLocal%Low\Microsoft\Internet Explorer\Services\search_{0633EE93-D776-472f-A0FF-E1416B8B2E3A}.ico
%Application Data%\Mozilla\Firefox\Profiles\lj5mikyj.default\logins.json

(Note: %Application Data% is the current user's Application Data folder, which is usually C:\Documents and Settings\{user name}\Application Data on Windows 2000(32-bit), XP, and Server 2003(32-bit), or C:\Users\{user name}\AppData\Roaming on Windows Vista, 7, 8, 8.1, 2008(64-bit), 2012(64-bit) and 10(64-bit).. %AppDataLocal% is the Local Application Data folder, which is usually C:\Documents and Settings\{user name}\Local Settings\Application Data on Windows 2000(32-bit), XP, and Server 2003(32-bit), or C:\Users\{user name}\AppData\Local on Windows Vista, 7, 8, 8.1, 2008(64-bit), 2012(64-bit) and 10(64-bit).)

It adds the following registry keys:

HKEY_LOCAL_MACHINE\Software\Microsoft\
Windows\CurrentVersion\Policies\
Explorer\Run

HKEY_CURRENT_USER\Software\remcos_hvbmtksknx

It adds the following registry entries:

HKEY_LOCAL_MACHINE\SOFTWARE\Wow6432Node\
Microsoft\Windows\CurrentVersion\
Run
Microsoft SVChost Service = "%Application Data%\Microsoft SVHost\svchost.exe"

HKEY_LOCAL_MACHINE\SOFTWARE\Wow6432Node\
Microsoft\Windows NT\CurrentVersion\
Winlogon
Shell = "explorer.exe, %Application Data%\Microsoft SVHost\svchost.exe"

HKEY_LOCAL_MACHINE\SOFTWARE\Wow6432Node\
Microsoft\Windows NT\CurrentVersion\
Winlogon
Userinit = "%System%\userinit.exe, %Application Data%\Microsoft SVHost\svchost.exe"

HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\
Windows\CurrentVersion\Policies\
Explorer\Run
Microsoft SVChost Service = "%Application Data%\Microsoft SVHost\svchost.exe"

HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\
Windows\CurrentVersion\Policies\
System
EnableLUA = "0"

HKEY_CURRENT_USER\Software\remcos_hvbmtksknx
EXEpath = "{random characters}"

HKEY_CURRENT_USER\Software\remcos_hvbmtksknx
Inj = "1"

HKEY_CURRENT_USER\Software\remcos_hvbmtksknx
FR = "1"

It deletes the following registry keys:

HKEY_CURRENT_USER\Software\remcos_hvbmtksknx\
Inj

Dropping Routine

This File infector drops the following files:

%AppDataLocal%\Microsoft\Internet Explorer\Recovery\High\Active\{1C4CD130-B7E6-11E9-87F0-005056BC6F22}.dat
%Program Files%\Internet Explorer\iexploremgr.exe
%AppDataLocal%\Microsoft\Internet Explorer\Recovery\High\Active\{26874A8E-B7E6-11E9-87F0-005056BC6F22}.dat
%AppDataLocal%\Microsoft\Internet Explorer\DOMStore\82DF2NUK\widgets.outbrain[1].xml
%AppDataLocal%\Microsoft\Internet Explorer\DOMStore\3UYAQU1F\contextual.media[1].xml
%AppDataLocal%\Microsoft\Internet Explorer\DOMStore\82DF2NUK\www.msn[1].xml
%AppDataLocal%\Microsoft\Internet Explorer\Recovery\High\Active\{1C4CD131-B7E6-11E9-87F0-005056BC6F22}.dat
%AppDataLocal%\Microsoft\Internet Explorer\DOMStore\82DF2NUK\secure-ds.serving-sys[1].xml
{malware path and file name}.exemgr.exe
%AppDataLocal%\Microsoft\Internet Explorer\Recovery\High\Active\{1C4CD133-B7E6-11E9-87F0-005056BC6F22}.dat
%AppDataLocal%\Microsoft\Internet Explorer\Recovery\High\Active\{525AFC4A-B7E6-11E9-87F0-005056BC6F22}.dat
%AppDataLocal%\Microsoft\Internet Explorer\Recovery\High\Active\RecoveryStore.{1C4CD12E-B7E6-11E9-87F0-005056BC6F22}.dat
%AppDataLocal%\Microsoft\Internet Explorer\MSIMGSIZ.DAT
%Application Data%\Microsoft SVHost\svchostmgr.exe
%AppDataLocal%\Microsoft\Internet Explorer\DOMStore\PDYB5D8B\tag.idsync.analytics.yahoo[1].xml
%AppDataLocal%\Microsoft\Internet Explorer\Recovery\High\Active\{26874A8C-B7E6-11E9-87F0-005056BC6F22}.dat
%AppDataLocal%\Microsoft\Internet Explorer\imagestore\joppu72\imagestore.dat
%AppDataLocal%\Microsoft\Internet Explorer\DomainSuggestions\en-US.6
%AppDataLocal%\Microsoft\Internet Explorer\Recovery\High\Active\{2DA4473E-B7E6-11E9-87F0-005056BC6F22}.dat
%Application Data%\Microsoft SVHost\svchost.exe

Other Details

This File infector connects to the following possibly malicious URL:

http://go.{BLOCKED}oft.com/fwlink/?LinkId=69157
http://www.{BLOCKED}n.com/?ocid=iehp
http://o.{BLOCKED}n.com/ads/adswrappermsni.js
http://static-global-s-msn-com.{BLOCKED}zed.net/{random path}?{random characters}
http://static-global-s-msn-com.{BLOCKED}zed.net/img-resizer/tenant/amp/entityid/AAGpOUO.img?{random characters}
http://static-global-s-msn-com.{BLOCKED}zed.net/img-resizer/tenant/amp/entityid/AAGUW9m.img?{random characters}
http://static-global-s-msn-com.{BLOCKED}zed.net/img-resizer/tenant/amp/entityid/BBiwNf.img?{random characters}
http://static-global-s-msn-com.{BLOCKED}zed.net/img-resizer/tenant/amp/entityid/BBXIOXy.img?{random characters}
http://static-global-s-msn-com.{BLOCKED}zed.net/img-resizer/tenant/amp/entityid/BBXINoU.img?{random characters}
http://static-global-s-msn-com.{BLOCKED}zed.net/img-resizer/tenant/amp/entityid/BBXIsjk.img?{random characters}
http://static-global-s-msn-com.{BLOCKED}zed.net/img-resizer/tenant/amp/entityid/BBXFX77.img?{random characters}
http://static-global-s-msn-com.{BLOCKED}zed.net/hp-wus/sc/ea/4996b9.woff
http://static-global-s-msn-com.{BLOCKED}zed.net/hp-wus/sc/c6/cfdbd9.png
http://www.{BLOCKED}n.com/en-us/homepage/irisbannerajax?{random characters}
http://c.{BLOCKED}n.com/c.gif?{random characters}
http://c.{BLOCKED}g.com/c.gif?{random characters}
http://at.{BLOCKED}a.com/{random path}
http://adserver.{BLOCKED}h.advertising.com/{random path}
http://static-global-s-msn-com.{BLOCKED}zed.net/img-resizer/tenant/amp/entityid/AAyxkRJ.img?{random characters}
http://static-global-s-msn-com.{BLOCKED}zed.net/img-resizer/tenant/amp/entityid/BBXFC6i.img?{random characters}
http://static-global-s-msn-com.{BLOCKED}zed.net/img-resizer/tenant/amp/entityid/BBXHssu.img?{random characters}
http://static-global-s-msn-com.{BLOCKED}zed.net/img-resizer/tenant/amp/entityid/BBAq9.img?{random characters}
http://static-global-s-msn-com.{BLOCKED}zed.net/img-resizer/tenant/amp/entityid/BBXITgA.img?{random characters}
http://static-global-s-msn-com.{BLOCKED}zed.net/img-resizer/tenant/amp/entityid/BBReDbo.img?{random characters}
http://static-global-s-msn-com.{BLOCKED}zed.net/img-resizer/tenant/amp/entityid/BBWPnBj.img?{random characters}
http://static-global-s-msn-com.{BLOCKED}zed.net/img-resizer/tenant/amp/entityid/BBXIXWt.img?{random characters}
http://static-global-s-msn-com.{BLOCKED}zed.net/img-resizer/tenant/amp/entityid/AA3lldo.img?{random characters}
http://acdn.{BLOCKED}s.com/ast/ast.js
http://banner.{BLOCKED}ising.com/ads/msn3.html
http://static-global-s-msn-com.{BLOCKED}zed.net/img-resizer/tenant/amp/entityid/BBXIrGO.img?{random characters}
http://static-global-s-msn-com.{BLOCKED}zed.net/img-resizer/tenant/amp/entityid/AAxeZXL.img?{random characters}
http://static-global-s-msn-com.{BLOCKED}zed.net/img-resizer/tenant/amp/entityid/BBXnkYq.img?{random characters}
http://static-global-s-msn-com.{BLOCKED}zed.net/img-resizer/tenant/amp/entityid/BBAJ56P.img?{random characters}
http://static-global-s-msn-com.{BLOCKED}zed.net/img-resizer/tenant/amp/entityid/BBXc5BR.img?{random characters}
http://g.{BLOCKED}g.com/uac/request?{random characters}
http://g.{BLOCKED}g.com/uac/response?{random characters}
http://static.{BLOCKED}eat.com/js/{BLOCKED}eat.js
http://m.{BLOCKED}s.com/ut/v3
http://static-global-s-msn-com.{BLOCKED}zed.net/img-resizer/tenant/amp/entityid/BBXtZXZ.img?{random characters}
http://static-global-s-msn-com.{BLOCKED}zed.net/img-resizer/tenant/amp/entityid/AA90cIE.img?{random characters}
http://static-global-s-msn-com.{BLOCKED}zed.net/img-resizer/tenant/amp/entityid/BBUDFrs.img?{random characters}
http://static-global-s-msn-com.{BLOCKED}zed.net/img-resizer/tenant/amp/entityid/AAE8xlk.img?{random characters}
http://static-global-s-msn-com.{BLOCKED}zed.net/img-resizer/tenant/amp/entityid/AAIM6SY.img?{random characters}
http://static-global-s-msn-com.{BLOCKED}zed.net/img-resizer/tenant/amp/entityid/BBUE38v.img?{random characters}
http://static-global-s-msn-com.{BLOCKED}zed.net/img-resizer/tenant/amp/entityid/AAILYH4.img?{random characters}
http://static-global-s-msn-com.{BLOCKED}zed.net/img-resizer/tenant/amp/entityid/BBXGRfz.img?{random characters}
http://img-s-msn-com.{BLOCKED}zed.net/tenant/amp/entityid/BBRL5wW.img?{random characters}
http://img-s-msn-com.{BLOCKED}zed.net/tenant/amp/entityid/AAFtT2V.img?{random characters}
http://static-global-s-msn-com.{BLOCKED}zed.net/img-resizer/tenant/amp/entityid/BBXIpBM.img?{random characters}
http://img-s-msn-com.{BLOCKED}zed.net/tenant/amp/entityid/AA565dd.img?{random characters}
http://static-global-s-msn-com.{BLOCKED}zed.net/img-resizer/tenant/amp/entityid/BBXIyZb.img?h=75&w=100&m=6&q=60&u=t&o=t&l=f
http://static-global-s-msn-com.{BLOCKED}zed.net/img-resizer/tenant/amp/entityid/BBXIAwq.img?h=75&w=100&m=6&q=60&u=t&o=t&l=f
http://img-s-msn-com.{BLOCKED}zed.net/tenant/amp/entityid/AAyhxXG.img?{random characters}
http://static-global-s-msn-com.{BLOCKED}zed.net/img-resizer/tenant/amp/entityid/BBX6tK3.img?h=75&w=100&m=6&q=60&u=t&o=t&l=f
http://img-s-msn-com.{BLOCKED}zed.net/tenant/amp/entityid/BB90I6E.img?{random characters}
http://img-s-msn-com.{BLOCKED}zed.net/tenant/amp/entityid/AA8I0Dg.img?{random characters}
http://ping.{BLOCKED}eat.net/ping?{random characters}
http://static-global-s-msn-com.{BLOCKED}zed.net/img-resizer/tenant/amp/entityid/BBXDcoo.img?h=75&w=100&m=6&q=60&u=t&o=t&l=f
http://static-global-s-msn-com.{BLOCKED}zed.net/img-resizer/tenant/amp/entityid/BBXIT81.img?h=75&w=100&m=6&q=60&u=t&o=t&l=f
http://img-s-msn-com.{BLOCKED}zed.net/tenant/amp/entityid/AAEHtW3.img?{random characters}
http://img-s-msn-com.{BLOCKED}zed.net/tenant/amp/entityid/AAyW7G9.img?{random characters}
http://static-global-s-msn-com.{BLOCKED}zed.net/img-resizer/tenant/amp/entityid/BBXIuiG.img?h=75&w=100&m=6&q=60&u=t&o=t&l=f
http://img-s-msn-com.{BLOCKED}zed.net/tenant/amp/entityid/BBTg0tm.img?{random characters}
http://static-global-s-msn-com.{BLOCKED}zed.net/img-resizer/tenant/amp/entityid/BBXIwrH.img?h=75&w=100&m=6&q=60&u=t&o=t&l=f
http://static-global-s-msn-com.{BLOCKED}zed.net/img-resizer/tenant/amp/entityid/BBXIIry.img?{random characters}
http://img-s-msn-com.{BLOCKED}zed.net/tenant/amp/entityid/BBXpxql.img?{random characters}
http://static-global-s-msn-com.{BLOCKED}zed.net/img-resizer/tenant/amp/entityid/AAfbgYI.img?{random characters}
http://eb2.{BLOCKED}t.com/mapuid?{random characters}
http://static-global-s-msn-com.{BLOCKED}zed.net/img-resizer/tenant/amp/entityid/BBXIOO4.img?h=75&w=100&m=6&q=60&u=t&o=t&l=f
http://static-global-s-msn-com.{BLOCKED}zed.net/img-resizer/tenant/amp/entityid/BBqlEdK.img?{random characters}
http://static-global-s-msn-com.{BLOCKED}zed.net/img-resizer/tenant/amp/entityid/AAFeXn0.img?{random characters}
http://eb2.{BLOCKED}t.com/getuid?ld=1&gdpr=0&cmp_cs=
http://www.{BLOCKED}n.com/en-us/homepage/npsajax?ver=20191116_19676952
http://widgets.{BLOCKED}in.com/external/publishers/msn/MSNIdSync.js
http://cdn.{BLOCKED}a.com/TaboolaCookieSyncScript.js
http://ib.{BLOCKED}s.com/async_usersync_file
http://tag.{BLOCKED}p.advertising.com/{BLOCKED}p.js
http://acdn.{BLOCKED}s.com/dmp/async_usersync.html
http://c.{BLOCKED}g.com/c.gif?Red3=MSOATH_pd
http://sync.{BLOCKED}in.com/uidmapjsonp?{random characters}
http://static-global-s-msn-com.{BLOCKED}zed.net/img-resizer/tenant/amp/entityid/AAt0eFC.img?{random characters}
http://static-global-s-msn-com.{BLOCKED}zed.net/img-resizer/tenant/amp/entityid/BBnGKDa.img?{random characters}
http://static-global-s-msn-com.{BLOCKED}zed.net/img-resizer/tenant/amp/entityid/BBWHr0i.img?{random characters}
http://static-global-s-msn-com.{BLOCKED}zed.net/img-resizer/tenant/amp/entityid/BBXGX6Z.img?{random characters}
http://static-global-s-msn-com.{BLOCKED}zed.net/img-resizer/tenant/amp/entityid/BB90I6E.img?{random characters}
http://ib.{BLOCKED}s.com/async_usersync?cbfn=queuePixels
http://lax1-ib.{BLOCKED}s.com/it?{random characters}
http://confiant.{BLOCKED}n.com/?{random characters}
http://cdn.{BLOCKED}verify.com/dv-match6.js
http://rtb2.{BLOCKED}verify.com/verify.js?{random characters}
http://usw-lax.{BLOCKED}r.org/bid/feedback/appnexus?{random characters}
http://lax1-ib.{BLOCKED}s.com/rd_log?{random characters}
http://acdn.{BLOCKED}s.com/dmp/async_usersync.html?{random characters}
http://static-global-s-msn-com.{BLOCKED}zed.net/img-resizer/tenant/amp/entityid/AAB8UW7.img?{random characters}
http://static-global-s-msn-com.{BLOCKED}zed.net/img-resizer/tenant/amp/entityid/AABDUsZ.img?{random characters}
http://tps704.{BLOCKED}verify.com/bsevent.gif?{random characters}
http://lax1-ib.{BLOCKED}s.com/click?{random characters}
http://odr.{BLOCKED}1.com/t/v2/sync?{random characters}
http://www.{BLOCKED}n.com/en-us/homepage/api/pagedatarequest?{random characters}
http://cdn.{BLOCKED}s.com/v/s/182/trk.js
http://static-global-s-msn-com.{BLOCKED}zed.net/img-resizer/tenant/amp/entityid/BBXIcoa.img?{random characters}
http://static-global-s-msn-com.{BLOCKED}zed.net/img-resizer/tenant/amp/entityid/AAEH6c0.img?{random characters}
http://ib.{BLOCKED}s.com/async_usersync?{random characters}
http://static-global-s-msn-com.{BLOCKED}zed.net/img-resizer/tenant/amp/entityid/BBXIzOU.img?{random characters}
http://lax1-ib.{BLOCKED}s.com/vevent?{random characters}
http://cm.{BLOCKED}g.doubleclick.net/pixel?{random characters}
http://tps703.{BLOCKED}verify.com/bsevent.gif?{random characters}
http://static-global-s-msn-com.{BLOCKED}zed.net/img-resizer/tenant/amp/entityid/BBXIrQS.img?{random characters}
http://tps700.{BLOCKED}verify.com/bsevent.gif?{random characters}
http://di.{BLOCKED}n.com/468246.html?{random characters}
http://tps702.{BLOCKED}verify.com/bsevent.gif?{random characters}
http://static-global-s-msn-com.{BLOCKED}zed.net/img-resizer/tenant/amp/entityid/AAvcS6D.img?{random characters}
http://static-global-s-msn-com.{BLOCKED}zed.net/img-resizer/tenant/amp/entityid/BBXEj6G.img?{random characters}
http://tps.{BLOCKED}verify.com/visit.js?{random characters}
http://c.{BLOCKED}n.com/geo/ba.js?r181114
http://c.{BLOCKED}n.com/a/4.gif
http://{BLOCKED}4.149.100/rd_log?{random characters}
http://static-global-s-msn-com.{BLOCKED}zed.net/img-resizer/tenant/amp/entityid/AACy14K.img?{random characters}
http://static-global-s-msn-com.{BLOCKED}zed.net/img-resizer/tenant/amp/entityid/BBWBsue.img?{random characters}
http://tps11027.{BLOCKED}verify.com/event.png?{random characters}
http://tps30.{BLOCKED}verify.com/query.js?ctx=818052&cmp=1239517532
http://tps11028.{BLOCKED}verify.com/event.png?{random characters}
http://c.{BLOCKED}n.com/a/n/709/66266.js
http://tps11019.{BLOCKED}verify.com/event.png?{random characters}
http://tps11008.{BLOCKED}verify.com/event.png?{random characters}
http://static-global-s-msn-com.{BLOCKED}zed.net/img-resizer/tenant/amp/entityid/BBXFHUy.img?{random characters}
http://static-global-s-msn-com.{BLOCKED}zed.net/img-resizer/tenant/amp/entityid/AAfZ6og.img?{random characters}
http://c.{BLOCKED}n.com/a/COMMON.css?r=0.2787166054441675
http://c.{BLOCKED}n.com/icon/ci.png
http://c.{BLOCKED}n.com/icon/box_19_top-left.png
http://l.{BLOCKED}d.com/{random path}?{random characters}
http://static-global-s-msn-com.{BLOCKED}zed.net/img-resizer/tenant/amp/entityid/BBWGZkw.img?{random characters}
http://static-global-s-msn-com.{BLOCKED}zed.net/img-resizer/tenant/amp/entityid/AAxf7dg.img?{random characters}
http://tps11011.{BLOCKED}verify.com/event.png?{random characters}
http://static-global-s-msn-com.{BLOCKED}zed.net/img-resizer/tenant/amp/entityid/BBXIbGq.img?{random characters}
http://static-global-s-msn-com.{BLOCKED}zed.net/img-resizer/tenant/amp/entityid/BBnb7v3.img?{random characters}
http://static-global-s-msn-com.{BLOCKED}zed.net/img-resizer/tenant/amp/entityid/AAf2cjT.img?{random characters}
http://static-global-s-msn-com.{BLOCKED}zed.net/img-resizer/tenant/amp/entityid/BBXclAW.img?{random characters}
http://static-global-s-msn-com.{BLOCKED}zed.net/img-resizer/tenant/amp/entityid/BBRMWiy.img?{random characters}
http://static-global-s-msn-com.{BLOCKED}zed.net/img-resizer/tenant/amp/entityid/BBXiigu.img?{random characters}
http://static-global-s-msn-com.{BLOCKED}zed.net/img-resizer/tenant/amp/entityid/BBXIFZk.img?{random characters}
http://static-global-s-msn-com.{BLOCKED}zed.net/img-resizer/tenant/amp/entityid/BBXGR5P.img?{random characters}
http://static-global-s-msn-com.{BLOCKED}zed.net/img-resizer/tenant/amp/entityid/BBJjkFU.img?{random characters}
http://static-global-s-msn-com.{BLOCKED}zed.net/img-resizer/tenant/amp/entityid/AAywOab.img?{random characters}
http://static-global-s-msn-com.{BLOCKED}zed.net/img-resizer/tenant/amp/entityid/BBXIyvy.img?{random characters}
http://static-global-s-msn-com.{BLOCKED}zed.net/img-resizer/tenant/amp/entityid/AAFwPRe.img?{random characters}
http://static-global-s-msn-com.{BLOCKED}zed.net/img-resizer/tenant/amp/entityid/AAtKMMs.img?{random characters}
http://static-global-s-msn-com.{BLOCKED}zed.net/img-resizer/tenant/amp/entityid/AA3dLwz.img?{random characters}
http://static-global-s-msn-com.{BLOCKED}zed.net/img-resizer/tenant/amp/entityid/BBX0FIh.img?{random characters}
http://static-global-s-msn-com.{BLOCKED}zed.net/img-resizer/tenant/amp/entityid/BBWBrSh.img?{random characters}
http://static-global-s-msn-com.{BLOCKED}zed.net/img-resizer/tenant/amp/entityid/BBXIOII.img?{random characters}
http://static-global-s-msn-com.{BLOCKED}zed.net/img-resizer/tenant/amp/entityid/BB857LO.img?{random characters}
http://static-global-s-msn-com.{BLOCKED}zed.net/img-resizer/tenant/amp/entityid/BBXIA4j.img?{random characters}
http://static-global-s-msn-com.{BLOCKED}zed.net/img-resizer/tenant/amp/entityid/BBCdwL6.img?{random characters}
http://static-global-s-msn-com.{BLOCKED}zed.net/img-resizer/tenant/amp/entityid/BBXEMlD.img?{random characters}
http://static-global-s-msn-com.{BLOCKED}zed.net/img-resizer/tenant/amp/entityid/BBXEpi2.img?{random characters}
http://static-global-s-msn-com.{BLOCKED}zed.net/img-resizer/tenant/amp/entityid/BBWIc7n.img?{random characters}
http://static-global-s-msn-com.{BLOCKED}zed.net/img-resizer/tenant/amp/entityid/BBXvIj7.img?{random characters}
http://static-global-s-msn-com.{BLOCKED}zed.net/img-resizer/tenant/amp/entityid/BB4kwAp.img?{random characters}
http://static-global-s-msn-com.{BLOCKED}zed.net/img-resizer/tenant/amp/entityid/BBXIwlC.img?{random characters}
http://static-global-s-msn-com.{BLOCKED}zed.net/img-resizer/tenant/amp/entityid/BBXFYvD.img?{random characters}
http://static-global-s-msn-com.{BLOCKED}zed.net/img-resizer/tenant/amp/entityid/AAuAlST.img?{random characters}
http://static-global-s-msn-com.{BLOCKED}zed.net/img-resizer/tenant/amp/entityid/BBXbT3l.img?{random characters}
http://static-global-s-msn-com.{BLOCKED}zed.net/img-resizer/tenant/amp/entityid/AAFu3wT.img?{random characters}
http://static-global-s-msn-com.{BLOCKED}zed.net/img-resizer/tenant/amp/entityid/AAJjwT6.img?{random characters}
http://static-global-s-msn-com.{BLOCKED}zed.net/img-resizer/tenant/amp/entityid/AAywGC0.img?{random characters}
http://static-global-s-msn-com.{BLOCKED}zed.net/img-resizer/tenant/amp/entityid/BBXIwOr.img?{random characters}
http://static-global-s-msn-com.{BLOCKED}zed.net/img-resizer/tenant/amp/entityid/BBXFoEB.img?{random characters}
http://static-global-s-msn-com.{BLOCKED}zed.net/img-resizer/tenant/amp/entityid/BBWBPol.img?{random characters}
http://static-global-s-msn-com.{BLOCKED}zed.net/img-resizer/tenant/amp/entityid/AACMkwg.img?{random characters}
http://static-global-s-msn-com.{BLOCKED}zed.net/img-resizer/tenant/amp/entityid/AAILHV4.img?{random characters}
http://static-global-s-msn-com.{BLOCKED}zed.net/img-resizer/tenant/amp/entityid/AABiFEE.img?{random characters}
http://static-global-s-msn-com.{BLOCKED}zed.net/img-resizer/tenant/amp/entityid/BBz3ebk.img?{random characters}
http://static-global-s-msn-com.{BLOCKED}zed.net/img-resizer/tenant/amp/entityid/BBXFHBq.img?{random characters}
http://static-global-s-msn-com.{BLOCKED}zed.net/img-resizer/tenant/amp/entityid/BBNvr53.img?{random characters}
http://static-global-s-msn-com.{BLOCKED}zed.net/img-resizer/tenant/amp/entityid/BBXw060.img?{random characters}
http://static-global-s-msn-com.{BLOCKED}zed.net/img-resizer/tenant/amp/entityid/BBXwvgn.img?{random characters}
http://static-global-s-msn-com.{BLOCKED}zed.net/img-resizer/tenant/amp/entityid/BBXw7Ur.img?{random characters}
http://static-global-s-msn-com.{BLOCKED}zed.net/img-resizer/tenant/amp/entityid/BBXwfxO.img?{random characters}
http://static-global-s-msn-com.{BLOCKED}zed.net/img-resizer/tenant/amp/entityid/AAGpDJm.img?{random characters}
http://static-global-s-msn-com.{BLOCKED}zed.net/img-resizer/tenant/amp/entityid/AAGpJTA.img?{random characters}
http://static-global-s-msn-com.{BLOCKED}zed.net/img-resizer/tenant/amp/entityid/AAGpMwR.img?{random characters}
http://static-global-s-msn-com.{BLOCKED}zed.net/img-resizer/tenant/amp/entityid/AAGw23J.img?{random characters}
http://static-global-s-msn-com.{BLOCKED}zed.net/img-resizer/tenant/amp/entityid/AAGw4Q8.img?{random characters}
http://static-global-s-msn-com.{BLOCKED}zed.net/img-resizer/tenant/amp/entityid/AAGvLL9.img?{random characters}
http://static-global-s-msn-com.{BLOCKED}zed.net/img-resizer/tenant/amp/entityid/AAGvV00.img?{random characters}
http://api.{BLOCKED}g.com
http://www.{BLOCKED}g.com
http://linkmaker.{BLOCKED}s.apple.com
http://sb.{BLOCKED}ardresearch.com
http://web.{BLOCKED}x.data.msn.com
http://cms.{BLOCKED}ics.yahoo.com
http://msn.{BLOCKED}dome.com
http://widgets.{BLOCKED}e.com
http://contextual.{BLOCKED}a.net
http://login.{BLOCKED}e.com
http://px.{BLOCKED}s.linkedin.com
http://www.{BLOCKED}in.com
http://p.{BLOCKED}totic.com
http://tag.{BLOCKED}c.analytics.yahoo.com
http://img-prod-cms-rt-microsoft-com.{BLOCKED}zed.net
http://arc.{BLOCKED}n.com
http://hbx.{BLOCKED}a.net
http://pr-bh.{BLOCKED}p.yahoo.com
http://srtb.{BLOCKED}n.com
http://gum.{BLOCKED}o.com
http://service.{BLOCKED}c.analytics.yahoo.com
http://idsync.{BLOCKED}n.com
http://tags.{BLOCKED}i.com
http://b1sync.{BLOCKED}a.com
http://res.{BLOCKED}a.net
http://dpm.{BLOCKED}x.net
http://match.{BLOCKED}r.org
http://beacon.{BLOCKED}d.net
http://aa.{BLOCKED}n.com
http://rtb.{BLOCKED}vr.com
http://sync-jp.{BLOCKED}s.net
http://dis.{BLOCKED}o.com
http://x.{BLOCKED}tch.net
http://de9a11s35xj3d.{BLOCKED}ront.net
http://hblg.{BLOCKED}a.net
http://lg3.{BLOCKED}a.net
http://rtb-usw.{BLOCKED}vr.com
http://{BLOCKED}o.com
http://cd.{BLOCKED}p.com
http://dsp.{BLOCKED}1.adition.com
http://px.{BLOCKED}inks.com
http://ps.{BLOCKED}a.net
http://loadus.{BLOCKED}or.com
http://id.{BLOCKED}m.com
http://{BLOCKED}k.com
http://sync.{BLOCKED}trl.net
http://dmp.{BLOCKED}ik.com
http://e.{BLOCKED}x.addthis.com
http://stags.{BLOCKED}i.com
http://dm.{BLOCKED}d.ai
http://x.{BLOCKED}x.addthis.com
http://protected-by.{BLOCKED}m.io
http://load77.{BLOCKED}or.com
http://www.{BLOCKED}tagservices.com
http://cdn3.{BLOCKED}verify.com
http://fk.{BLOCKED}nengine.net
http://bs.{BLOCKED}g-sys.com
http://cvision.{BLOCKED}a.net
http://secure-ds.{BLOCKED}g-sys.com
http://p.{BLOCKED}d.com
http://z.{BLOCKED}s.com
http://ieonline.{BLOCKED}oft.com
http://cdn2.{BLOCKED}dvertising.com
http://tapestry.{BLOCKED}d.com
http://lm.{BLOCKED}g-sys.com
http://sqm.{BLOCKED}try.microsoft.com
http://px.{BLOCKED}s.com
http://c.{BLOCKED}d.com
http://api.{BLOCKED}dvertising.com
http://d.{BLOCKED}n.com
http://secure-gl.{BLOCKED}ldwide.com
http://www.{BLOCKED}ok.com
{BLOCKED}1.193.99

This report is generated via an automated analysis system.

SOLUTION

Minimum Scan Engine:

9.850

Step 1

Before doing any scans, Windows 7, Windows 8, Windows 8.1, and Windows 10 users must disable System Restore to allow full scanning of their computers.

Step 2

Restart in Safe Mode

[ Learn More ]

Step 3

Identify and terminate files detected as Virus.Win32.RAMNIT.DSI.orig

[ Learn More ]

Windows Task Manager may not display all running processes. In this case, please use a third-party process viewer, preferably Process Explorer, to terminate the malware/grayware/spyware file. You may download the said tool here.
If the detected file is displayed in either Windows Task Manager or Process Explorer but you cannot delete it, restart your computer in safe mode. To do this, refer to this link for the complete steps.
If the detected file is not displayed in either Windows Task Manager or Process Explorer, continue doing the next steps.

Step 4

Delete this registry key

[ Learn More ]

Important: Editing the Windows Registry incorrectly can lead to irreversible system malfunction. Please do this step only if you know how or you can ask assistance from your system administrator. Else, check this Microsoft article first before modifying your computer's registry.

In HKEY_LOCAL_MACHINE\Software\Microsoft\Windows\CurrentVersion\Policies\Explorer
- Run

In HKEY_CURRENT_USER\Software
- remcos_hvbmtksknx

Step 5

Delete this registry value

[ Learn More ]

In HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Run
- Microsoft SVChost Service = "%Application Data%\Microsoft SVHost\svchost.exe"

In HKEY_LOCAL_MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\Run
- Microsoft SVChost Service = "%Application Data%\Microsoft SVHost\svchost.exe"

In HKEY_LOCAL_MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows NT\CurrentVersion\Winlogon
- Shell = "explorer.exe, %Application Data%\Microsoft SVHost\svchost.exe"

In HKEY_LOCAL_MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows NT\CurrentVersion\Winlogon
- Userinit = "%System%\userinit.exe, %Application Data%\Microsoft SVHost\svchost.exe"

In HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\Explorer\Run
- Microsoft SVChost Service = "%Application Data%\Microsoft SVHost\svchost.exe"

In HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System
- EnableLUA = "0"

In HKEY_CURRENT_USER\Software\remcos_hvbmtksknx
- EXEpath = "{random characters}"

In HKEY_CURRENT_USER\Software\remcos_hvbmtksknx
- Inj = "1"

In HKEY_CURRENT_USER\Software\remcos_hvbmtksknx
- FR = "1"

To delete the registry value this malware/grayware created:

Open Registry Editor.
» For Windows 7 and Windows Server 2008 (R2) users, click the Start button, type regedit in the Search input field then press Enter.
» For Windows 8, Windows 8.1, Windows 10, and Windows Server 2012 (R2) users, right-click on the lower-left corner of the screen, click Run, type regedit in the text box provided, and then press Enter.
In the left panel, double-click the following:
HKEY_CURRENT_USER>Software>Microsoft>Windows>CurrentVersion>Run
In the right panel, locate and delete the entry:
Microsoft SVChost Service = "%Application Data%\Microsoft SVHost\svchost.exe"
In the left panel, double-click the following:
HKEY_LOCAL_MACHINE>SOFTWARE>Wow6432Node>Microsoft>Windows>CurrentVersion>Run
In the right panel, locate and delete the entry:
Microsoft SVChost Service = "%Application Data%\Microsoft SVHost\svchost.exe"
In the left panel, double-click the following:
HKEY_LOCAL_MACHINE>SOFTWARE>Wow6432Node>Microsoft>Windows NT>CurrentVersion>Winlogon
In the right panel, locate and delete the entry:
Shell = "explorer.exe, %Application Data%\Microsoft SVHost\svchost.exe"
Again In the right panel, locate and delete the entry:
Userinit = "%System%\userinit.exe, %Application Data%\Microsoft SVHost\svchost.exe"
In the left panel, double-click the following:
HKEY_LOCAL_MACHINE>SOFTWARE>Microsoft>Windows>CurrentVersion>Policies>Explorer>Run
In the right panel, locate and delete the entry:
Microsoft SVChost Service = "%Application Data%\Microsoft SVHost\svchost.exe"
In the left panel, double-click the following:
HKEY_LOCAL_MACHINE>SOFTWARE>Microsoft>Windows>CurrentVersion>Policies>System
In the right panel, locate and delete the entry:
EnableLUA = "0"
In the left panel, double-click the following:
HKEY_CURRENT_USER>Software>remcos_hvbmtksknx
In the right panel, locate and delete the entry:
EXEpath = "{random characters}"
Again In the right panel, locate and delete the entry:
Inj = "1"
Again In the right panel, locate and delete the entry:
FR = "1"
Close Registry Editor.

Step 6

Search and delete these components

[ Learn More ]

There may be some components that are hidden. Please make sure you check the Search Hidden Files and Folders checkbox in the "More advanced options" option to include all hidden files and folders in the search result.

%AppDataLocal%\Microsoft\Internet Explorer\Recovery\High\Active\{1C4CD130-B7E6-11E9-87F0-005056BC6F22}.dat
%Program Files%\Internet Explorer\iexploremgr.exe
%AppDataLocal%\Microsoft\Internet Explorer\Recovery\High\Active\{26874A8E-B7E6-11E9-87F0-005056BC6F22}.dat
%AppDataLocal%\Microsoft\Internet Explorer\DOMStore\82DF2NUK\widgets.outbrain[1].xml
%AppDataLocal%\Microsoft\Internet Explorer\DOMStore\3UYAQU1F\contextual.media[1].xml
%AppDataLocal%\Microsoft\Internet Explorer\DOMStore\82DF2NUK\www.msn[1].xml
%AppDataLocal%\Microsoft\Internet Explorer\Recovery\High\Active\{1C4CD131-B7E6-11E9-87F0-005056BC6F22}.dat
%AppDataLocal%\Microsoft\Internet Explorer\DOMStore\82DF2NUK\secure-ds.serving-sys[1].xml
{malware path and file name}.exemgr.exe
%AppDataLocal%\Microsoft\Internet Explorer\Recovery\High\Active\{1C4CD133-B7E6-11E9-87F0-005056BC6F22}.dat
%AppDataLocal%\Microsoft\Internet Explorer\Recovery\High\Active\{525AFC4A-B7E6-11E9-87F0-005056BC6F22}.dat
%AppDataLocal%\Microsoft\Internet Explorer\Recovery\High\Active\RecoveryStore.{1C4CD12E-B7E6-11E9-87F0-005056BC6F22}.dat
%AppDataLocal%\Microsoft\Internet Explorer\MSIMGSIZ.DAT
%Application Data%\Microsoft SVHost\svchostmgr.exe
%AppDataLocal%\Microsoft\Internet Explorer\DOMStore\PDYB5D8B\tag.idsync.analytics.yahoo[1].xml
%AppDataLocal%\Microsoft\Internet Explorer\Recovery\High\Active\{26874A8C-B7E6-11E9-87F0-005056BC6F22}.dat
%AppDataLocal%\Microsoft\Internet Explorer\imagestore\joppu72\imagestore.dat
%AppDataLocal%\Microsoft\Internet Explorer\DomainSuggestions\en-US.6
%AppDataLocal%\Microsoft\Internet Explorer\Recovery\High\Active\{2DA4473E-B7E6-11E9-87F0-005056BC6F22}.dat
%Application Data%\Microsoft SVHost\svchost.exe

To manually delete a malware/grayware file from an affected system:

•For Windows 7, Windows Server 2008 (R2), Windows 8, Windows 8.1, Windows 10, and Windows Server 2012 (R2):

Open a Windows Explorer window.
- For Windows 7 and Server 2008 (R2) users, click Start>Computer.
- For Windows 8, 8.1, 10, and Server 2012 (R2) users, right-click on the lower-left corner of the screen,then click File Explorer.
In the Search Computer/This PC input box, type:
%AppDataLocal%\Microsoft\Internet Explorer\Recovery\High\Active\{1C4CD130-B7E6-11E9-87F0-005056BC6F22}.dat
%Program Files%\Internet Explorer\iexploremgr.exe
%AppDataLocal%\Microsoft\Internet Explorer\Recovery\High\Active\{26874A8E-B7E6-11E9-87F0-005056BC6F22}.dat
%AppDataLocal%\Microsoft\Internet Explorer\DOMStore\82DF2NUK\widgets.outbrain[1].xml
%AppDataLocal%\Microsoft\Internet Explorer\DOMStore\3UYAQU1F\contextual.media[1].xml
%AppDataLocal%\Microsoft\Internet Explorer\DOMStore\82DF2NUK\www.msn[1].xml
%AppDataLocal%\Microsoft\Internet Explorer\Recovery\High\Active\{1C4CD131-B7E6-11E9-87F0-005056BC6F22}.dat
%AppDataLocal%\Microsoft\Internet Explorer\DOMStore\82DF2NUK\secure-ds.serving-sys[1].xml
{malware path and file name}.exemgr.exe
%AppDataLocal%\Microsoft\Internet Explorer\Recovery\High\Active\{1C4CD133-B7E6-11E9-87F0-005056BC6F22}.dat
%AppDataLocal%\Microsoft\Internet Explorer\Recovery\High\Active\{525AFC4A-B7E6-11E9-87F0-005056BC6F22}.dat
%AppDataLocal%\Microsoft\Internet Explorer\Recovery\High\Active\RecoveryStore.{1C4CD12E-B7E6-11E9-87F0-005056BC6F22}.dat
%AppDataLocal%\Microsoft\Internet Explorer\MSIMGSIZ.DAT
%Application Data%\Microsoft SVHost\svchostmgr.exe
%AppDataLocal%\Microsoft\Internet Explorer\DOMStore\PDYB5D8B\tag.idsync.analytics.yahoo[1].xml
%AppDataLocal%\Microsoft\Internet Explorer\Recovery\High\Active\{26874A8C-B7E6-11E9-87F0-005056BC6F22}.dat
%AppDataLocal%\Microsoft\Internet Explorer\imagestore\joppu72\imagestore.dat
%AppDataLocal%\Microsoft\Internet Explorer\DomainSuggestions\en-US.6
%AppDataLocal%\Microsoft\Internet Explorer\Recovery\High\Active\{2DA4473E-B7E6-11E9-87F0-005056BC6F22}.dat
%Application Data%\Microsoft SVHost\svchost.exe
Once located, select the file then press SHIFT+DELETE to delete it.
*Note: Read the following Microsoft page if these steps do not work on Windows 7 and Windows Server 2008 (R2).

Step 7

Search and delete these folders

[ Learn More ]

Please make sure you check the Search Hidden Files and Folders checkbox in the More advanced options option to include all hidden folders in the search result.

%AppDataLocal%\Microsoft\Internet Explorer\Recovery\High\Active
%Application Data%\Microsoft\Windows\IECompatUACache
%AppDataLocal%\Microsoft\Internet Explorer\DomainSuggestions
%Application Data%\Microsoft\Windows\IECompatCache
%Application Data%\remcos
%Application Data%\Microsoft\Windows\DNTException
%Application Data%\Microsoft\Windows\PrivacIE
%Application Data%\Microsoft SVHost

Step 8

Restart in normal mode and scan your computer with your Trend Micro product for files detected as Virus.Win32.RAMNIT.DSI.orig. If the detected files have already been cleaned, deleted, or quarantined by your Trend Micro product, no further step is required. You may opt to simply delete the quarantined files. Please check this Knowledge Base page for more information.

Step 9

Restore this file from backup only Microsoft-related files will be restored. If this malware/grayware also deleted files related to programs that are not from Microsoft, please reinstall those programs on you computer again.

%Application Data%\Mozilla\Firefox\Profiles\lj5mikyj.default\key3.db
%Application Data%\Mozilla\Firefox\Profiles\lj5mikyj.default\cookies.sqlite
%AppDataLocal%Low\Microsoft\Internet Explorer\Services\search_{0633EE93-D776-472f-A0FF-E1416B8B2E3A}.ico
%Application Data%\Mozilla\Firefox\Profiles\lj5mikyj.default\logins.json

Step 10

Restore these deleted registry keys/values from backup

*Note: Only Microsoft-related keys/values will be restored. If the malware/grayware also deleted registry keys/values related to programs that are not from Microsoft, please reinstall those programs on your computer.

In HKEY_CURRENT_USER\Software\remcos_hvbmtksknx
- Inj

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Virus.Win32.RAMNIT.DSI.orig

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