TROJ_WARSPY.A
TrojanDownloader:Win32/WarSpy (Microsoft); MultiDropper-NY (McAfee); Trojan-Downloader.Win32.WarSpy.d (Kaspersky); Trojan.FakeAlert (Sunbelt); Dropped:Trojan.Generic.1714021 (FSecure)
Windows 2000, Windows, XP, Windows Server 2003
Threat Type: Trojan
Destructiveness: No
Encrypted:
In the wild: Yes
OVERVIEW
This Trojan 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
125,440 bytes
EXE
No
28 Nov 2011
Arrival Details
This Trojan arrives on a system as a file dropped by other malware or as a file downloaded unknowingly by users when visiting malicious sites.
Other System Modifications
This Trojan adds the following registry keys:
HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\
Windows\CurrentVersion\Uninstall\
Internet Connection Update and HomeP KB234087
HKEY_CLASSES_ROOT\CLSID\{D56A1203-1452-EBA1-7294-EE3377770000}\
InProcServer32
HKEY_CLASSES_ROOT\Serch_hook.transURL.1
HKEY_LOCAL_MACHINE\SOFTWARE\Classes\
Serch_hook.transURL.1\CLSID
HKEY_CLASSES_ROOT\Serch_hook.transURL
HKEY_LOCAL_MACHINE\SOFTWARE\Classes\
Serch_hook.transURL\CLSID
HKEY_LOCAL_MACHINE\SOFTWARE\Classes\
Serch_hook.transURL\CurVer
HKEY_LOCAL_MACHINE\SOFTWARE\Classes\
CLSID\{C7EDAB2E-D7F9-11D8-BA48-C79B0C409D70}
HKEY_LOCAL_MACHINE\SOFTWARE\Classes\
CLSID\{C7EDAB2E-D7F9-11D8-BA48-C79B0C409D70}\ProgID
HKEY_LOCAL_MACHINE\SOFTWARE\Classes\
CLSID\{C7EDAB2E-D7F9-11D8-BA48-C79B0C409D70}\VersionIndependentProgID
HKEY_LOCAL_MACHINE\SOFTWARE\Classes\
CLSID\{C7EDAB2E-D7F9-11D8-BA48-C79B0C409D70}\Programmable
HKEY_LOCAL_MACHINE\SOFTWARE\Classes\
CLSID\{C7EDAB2E-D7F9-11D8-BA48-C79B0C409D70}\InprocServer32
HKEY_LOCAL_MACHINE\SOFTWARE\Classes\
CLSID\{C7EDAB2E-D7F9-11D8-BA48-C79B0C409D70}\TypeLib
HKEY_LOCAL_MACHINE\SOFTWARE\Classes\
TypeLib\{C7EDAB21-D7F9-11D8-BA48-C79B0C409D70}
HKEY_LOCAL_MACHINE\SOFTWARE\Classes\
TypeLib\{C7EDAB21-D7F9-11D8-BA48-C79B0C409D70}\1.0
HKEY_LOCAL_MACHINE\SOFTWARE\Classes\
TypeLib\{C7EDAB21-D7F9-11D8-BA48-C79B0C409D70}\1.0\
FLAGS
HKEY_LOCAL_MACHINE\SOFTWARE\Classes\
TypeLib\{C7EDAB21-D7F9-11D8-BA48-C79B0C409D70}\1.0\
0
HKEY_LOCAL_MACHINE\SOFTWARE\Classes\
TypeLib\{C7EDAB21-D7F9-11D8-BA48-C79B0C409D70}\1.0\
0\win32
HKEY_LOCAL_MACHINE\SOFTWARE\Classes\
TypeLib\{C7EDAB21-D7F9-11D8-BA48-C79B0C409D70}\1.0\
HELPDIR
HKEY_LOCAL_MACHINE\SOFTWARE\Classes\
Interface\{C7EDAB2D-D7F9-11D8-BA48-C79B0C409D70}
HKEY_LOCAL_MACHINE\SOFTWARE\Classes\
Interface\{C7EDAB2D-D7F9-11D8-BA48-C79B0C409D70}\ProxyStubClsid
HKEY_LOCAL_MACHINE\SOFTWARE\Classes\
Interface\{C7EDAB2D-D7F9-11D8-BA48-C79B0C409D70}\ProxyStubClsid32
HKEY_LOCAL_MACHINE\SOFTWARE\Classes\
Interface\{C7EDAB2D-D7F9-11D8-BA48-C79B0C409D70}\TypeLib
It adds the following registry entries:
HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\
Windows\CurrentVersion\Uninstall\
Internet Connection Update and HomeP KB234087
DisplayName = "Internet Connection Update and HomeP KB234087"
HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\
Windows\CurrentVersion\Uninstall\
Internet Connection Update and HomeP KB234087
UninstallString = "%System%\guninst.exe"
HKEY_LOCAL_MACHINE\SOFTWARE\Classes\
CLSID\{D56A1203-1452-EBA1-7294-EE3377770000}\InProcServer32
ThreadingModel = "Apartment"
HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\
Windows\CurrentVersion\Explorer\
SharedTaskScheduler
{D56A1203-1452-EBA1-7294-EE3377770000} = "Interlinking Memory Support"
HKEY_LOCAL_MACHINE\SOFTWARE\Classes\
CLSID\{C7EDAB2E-D7F9-11D8-BA48-C79B0C409D70}\InprocServer32
ThreadingModel = "Apartment"
HKEY_LOCAL_MACHINE\SOFTWARE\Classes\
Interface\{C7EDAB2D-D7F9-11D8-BA48-C79B0C409D70}\TypeLib
Version = "1.0"
It modifies the following registry entries:
HKEY_CURRENT_USER\Software\Microsoft\
Internet Explorer\Main
Start Page = "http://www.{BLOCKED}ers.info/ad0352"
(Note: The default value data of the said registry entry is http://www.microsoft.com/isapi/redir.dll?prd=ie&pver=6&ar=msnhome.)
Dropping Routine
This Trojan drops the following files:
- %System%\param32.dll
- %System%\searchdll.dll
- %System%\guninst.exe
- %System%\popup_bl.dll
- %System%\Air Tickets.ico
- %System%\Online Betting.ico
- %System%\BlackJack.ico
- %System%\Car Insurance.ico
- %System%\Cruises.ico
- %System%\Remove Spyware.ico
- %System%\Cheap Cigarettes.ico
- %System%\Phentermine.ico
- %System%\Online Casino.ico
- %System%\Viagra.ico
- %System%\MP3.ico
- %System%\Party Poker.ico
- %System%\Credit Card.ico
- %System%\Pharmacy.ico
- %System%\Currency Trading.ico
- %System%\Britney Spears.ico
- %System%\Big Tits.ico
- %System%\Pornstars.ico
- %System%\Lesbian Sex.ico
- %System%\Oral Sex.ico
- %Desktop%\Air Tickets.url
- %Desktop%\Online Betting.url
- %Desktop%\BlackJack.url
- %Desktop%\Car Insurance.url
- %Desktop%\Cruises.url
- %Desktop%\Remove Spyware.url
- %Desktop%\Cheap Cigarettes.url
- %Desktop%\Phentermine.url
- %Desktop%\Online Casino.url
- %Desktop%\Viagra.url
- %Desktop%\MP3.url
- %Desktop%\Party Poker.url
- %Desktop%\Credit Card.url
- %Desktop%\Pharmacy.url
- %Desktop%\Currency Trading.url
- %Desktop%\Britney Spears.url
- %Desktop%\Big Tits.url
- %Desktop%\Pornstars.url
- %Desktop%\Lesbian Sex.url
- %Desktop%\Oral Sex.url
(Note: %System% is the Windows system folder, which is usually C:\Windows\System on Windows 98 and ME, C:\WINNT\System32 on Windows NT and 2000, or C:\Windows\System32 on Windows XP and Server 2003.. %Desktop% is the current user's desktop, which is usually C:\Windows\Profiles\{user name}\Desktop on Windows 98 and ME, C:\WINNT\Profiles\{user name}\Desktop on Windows NT, and C:\Documents and Settings\{User Name}\Desktop on Windows 2000, XP, and Server 2003.)
Other Details
This Trojan connects to the following possibly malicious URL:
- http://www.{BLOCKED}ers.info/pc/loader.exe
- http://dark.{BLOCKED}eyourpockets.com/gate.php?uid=ad0352
This report is generated via an automated analysis system.
SOLUTION
9.200
Step 1
For Windows XP and Windows Server 2003 users, before doing any scans, please make sure you disable System Restore to allow full scanning of your computer.
Step 2
Delete this registry key
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\Uninstall
- Internet Connection Update and HomeP KB234087
- In HKEY_CLASSES_ROOT\CLSID\{D56A1203-1452-EBA1-7294-EE3377770000}
- InProcServer32
- In HKEY_CLASSES_ROOT
- Serch_hook.transURL.1
- In HKEY_LOCAL_MACHINE\SOFTWARE\Classes\Serch_hook.transURL.1
- CLSID
- In HKEY_CLASSES_ROOT
- Serch_hook.transURL
- In HKEY_LOCAL_MACHINE\SOFTWARE\Classes\Serch_hook.transURL
- CLSID
- In HKEY_LOCAL_MACHINE\SOFTWARE\Classes\Serch_hook.transURL
- CurVer
- In HKEY_LOCAL_MACHINE\SOFTWARE\Classes\CLSID
- {C7EDAB2E-D7F9-11D8-BA48-C79B0C409D70}
- In HKEY_LOCAL_MACHINE\SOFTWARE\Classes\CLSID\{C7EDAB2E-D7F9-11D8-BA48-C79B0C409D70}
- ProgID
- In HKEY_LOCAL_MACHINE\SOFTWARE\Classes\CLSID\{C7EDAB2E-D7F9-11D8-BA48-C79B0C409D70}
- VersionIndependentProgID
- In HKEY_LOCAL_MACHINE\SOFTWARE\Classes\CLSID\{C7EDAB2E-D7F9-11D8-BA48-C79B0C409D70}
- Programmable
- In HKEY_LOCAL_MACHINE\SOFTWARE\Classes\CLSID\{C7EDAB2E-D7F9-11D8-BA48-C79B0C409D70}
- InprocServer32
- In HKEY_LOCAL_MACHINE\SOFTWARE\Classes\CLSID\{C7EDAB2E-D7F9-11D8-BA48-C79B0C409D70}
- TypeLib
- In HKEY_LOCAL_MACHINE\SOFTWARE\Classes\TypeLib
- {C7EDAB21-D7F9-11D8-BA48-C79B0C409D70}
- In HKEY_LOCAL_MACHINE\SOFTWARE\Classes\TypeLib\{C7EDAB21-D7F9-11D8-BA48-C79B0C409D70}
- 1.0
- In HKEY_LOCAL_MACHINE\SOFTWARE\Classes\TypeLib\{C7EDAB21-D7F9-11D8-BA48-C79B0C409D70}\1.0
- FLAGS
- In HKEY_LOCAL_MACHINE\SOFTWARE\Classes\TypeLib\{C7EDAB21-D7F9-11D8-BA48-C79B0C409D70}\1.0
- 0
- In HKEY_LOCAL_MACHINE\SOFTWARE\Classes\TypeLib\{C7EDAB21-D7F9-11D8-BA48-C79B0C409D70}\1.0\0
- win32
- In HKEY_LOCAL_MACHINE\SOFTWARE\Classes\TypeLib\{C7EDAB21-D7F9-11D8-BA48-C79B0C409D70}\1.0
- HELPDIR
- In HKEY_LOCAL_MACHINE\SOFTWARE\Classes\Interface
- {C7EDAB2D-D7F9-11D8-BA48-C79B0C409D70}
- In HKEY_LOCAL_MACHINE\SOFTWARE\Classes\Interface\{C7EDAB2D-D7F9-11D8-BA48-C79B0C409D70}
- ProxyStubClsid
- In HKEY_LOCAL_MACHINE\SOFTWARE\Classes\Interface\{C7EDAB2D-D7F9-11D8-BA48-C79B0C409D70}
- ProxyStubClsid32
- In HKEY_LOCAL_MACHINE\SOFTWARE\Classes\Interface\{C7EDAB2D-D7F9-11D8-BA48-C79B0C409D70}
- TypeLib
Step 3
Delete this registry value
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\Uninstall\Internet Connection Update and HomeP KB234087
- DisplayName="Internet Connection Update and HomeP KB234087"
- In HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Uninstall\Internet Connection Update and HomeP KB234087
- UninstallString="%System%\guninst.exe"
- In HKEY_LOCAL_MACHINE\SOFTWARE\Classes\CLSID\{D56A1203-1452-EBA1-7294-EE3377770000}\InProcServer32
- ThreadingModel="Apartment"
- In HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Explorer\SharedTaskScheduler
- {D56A1203-1452-EBA1-7294-EE3377770000}="Interlinking Memory Support"
- In HKEY_LOCAL_MACHINE\SOFTWARE\Classes\CLSID\{C7EDAB2E-D7F9-11D8-BA48-C79B0C409D70}\InprocServer32
- ThreadingModel="Apartment"
- In HKEY_LOCAL_MACHINE\SOFTWARE\Classes\Interface\{C7EDAB2D-D7F9-11D8-BA48-C79B0C409D70}\TypeLib
- Version="1.0"
Step 4
Restore this modified registry value
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_CURRENT_USER\Software\Microsoft\Internet Explorer\Main
- From: Start Page="http://www.{BLOCKED}ers.info/ad0352"
To: Start Page=http://www.microsoft.com/isapi/redir.dll?prd=ie&pver=6&ar=msnhome
- From: Start Page="http://www.{BLOCKED}ers.info/ad0352"
Step 5
Search and delete these files
- %System%\param32.dll
- %System%\searchdll.dll
- %System%\guninst.exe
- %System%\popup_bl.dll
- %System%\Air Tickets.ico
- %System%\Online Betting.ico
- %System%\BlackJack.ico
- %System%\Car Insurance.ico
- %System%\Cruises.ico
- %System%\Remove Spyware.ico
- %System%\Cheap Cigarettes.ico
- %System%\Phentermine.ico
- %System%\Online Casino.ico
- %System%\Viagra.ico
- %System%\MP3.ico
- %System%\Party Poker.ico
- %System%\Credit Card.ico
- %System%\Pharmacy.ico
- %System%\Currency Trading.ico
- %System%\Britney Spears.ico
- %System%\Big Tits.ico
- %System%\Pornstars.ico
- %System%\Lesbian Sex.ico
- %System%\Oral Sex.ico
- %Desktop%\Air Tickets.url
- %Desktop%\Online Betting.url
- %Desktop%\BlackJack.url
- %Desktop%\Car Insurance.url
- %Desktop%\Cruises.url
- %Desktop%\Remove Spyware.url
- %Desktop%\Cheap Cigarettes.url
- %Desktop%\Phentermine.url
- %Desktop%\Online Casino.url
- %Desktop%\Viagra.url
- %Desktop%\MP3.url
- %Desktop%\Party Poker.url
- %Desktop%\Credit Card.url
- %Desktop%\Pharmacy.url
- %Desktop%\Currency Trading.url
- %Desktop%\Britney Spears.url
- %Desktop%\Big Tits.url
- %Desktop%\Pornstars.url
- %Desktop%\Lesbian Sex.url
- %Desktop%\Oral Sex.url
Step 6
Scan your computer with your Trend Micro product to delete files detected as TROJ_WARSPY.A. 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.
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