TROJ_UPATRE.AAS

June 03, 2015

ALIASES:

TrojanDownloader:Win32/Upatre.A (Microsoft); RDN/Generic.bfg!c (McAfee); Trojan.Zbot (Symantec); Trojan-Spy.Win32.Zbot.swyu (Kaspersky); Mal/Zbot-QL (Sophos); Win32.Malware!Drop (Sunbelt); Trojan horse Downloader.Generic13.CEFR (AVG)

PLATFORM:

Windows 2000, Windows Server 2003, Windows XP (32-bit, 64-bit), Windows Vista (32-bit, 64-bit), Windows 7 (32-bit, 64-bit)

OVERALL RISK RATING:

DAMAGE POTENTIAL:

DISTRIBUTION POTENTIAL:

REPORTED INFECTION:

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.

It deletes itself after execution.

TECHNICAL DETAILS

File Size: 18,432 bytes

File Type: EXE

Memory Resident: Yes

Initial Samples Received Date: 30 May 2014

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.

Installation

This Trojan creates the following folders:

%User Temp%\Taka
%User Profile%\Microsoft\Address Book
%User Temp%\RSMB069
%User Temp%\IHNB4C2

(Note: %User Temp% is the user's temporary folder, where it usually is C:\Documents and Settings\{user name}\Local Settings\Temp on Windows 2000, Windows Server 2003, and Windows XP (32- and 64-bit); C:\Users\{user name}\AppData\Local\Temp on Windows Vista (32- and 64-bit), Windows 7 (32- and 64-bit), Windows 8 (32- and 64-bit), Windows 8.1 (32- and 64-bit), Windows Server 2008, and Windows Server 2012.. %User Profile% is the current user's profile folder, which is usually C:\Documents and Settings\{user name} on Windows 2000, XP, and Server 2003, or C:\Users\{user name} on Windows Vista and 7.)

Autostart Technique

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

HKEY_CURRENT_USER\Software\Microsoft\
Windows\CurrentVersion\Run
Bovido = "%User Temp%\Taka\bovido.exe "

HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\
Windows\CurrentVersion\Run
ncxvbyva = "%System%\ncxvbyva.exe"

HKEY_CURRENT_USER\Software\Microsoft\
Windows\CurrentVersion\Run
ncxvbyva = "%User Profile%\ncxvbyva.exe"

Other System Modifications

This Trojan deletes the following files:

%User Temp%\yieso.exe
%Temp%\scs14.tmp
%Temp%\scs17.tmp

(Note: %User Temp% is the user's temporary folder, where it usually is C:\Documents and Settings\{user name}\Local Settings\Temp on Windows 2000, Windows Server 2003, and Windows XP (32- and 64-bit); C:\Users\{user name}\AppData\Local\Temp on Windows Vista (32- and 64-bit), Windows 7 (32- and 64-bit), Windows 8 (32- and 64-bit), Windows 8.1 (32- and 64-bit), Windows Server 2008, and Windows Server 2012.. %Temp% is the Windows temporary folder, where it usually is C:\Windows\Temp on all Windows operating system versions.)

It adds the following registry keys:

HKEY_CURRENT_USER\Software\Ozvyuhycdu

HKEY_CURRENT_USER\Software\Microsoft\
Internet Account Manager

HKEY_CURRENT_USER\Software\Microsoft\
Internet Account Manager\Accounts

HKEY_CURRENT_USER\Software\Microsoft\
Internet Account Manager\Accounts\Active Directory GC

HKEY_CURRENT_USER\Software\Microsoft\
Internet Account Manager\Accounts\Bigfoot

HKEY_CURRENT_USER\Software\Microsoft\
Internet Account Manager\Accounts\VeriSign

HKEY_CURRENT_USER\Software\Microsoft\
Internet Account Manager\Accounts\WhoWhere

HKEY_CURRENT_USER\Software\Microsoft\
WAB\WAB4\Wab File Name

HKEY_CURRENT_USER\Software\Ozvyuhycdu?

It adds the following registry entries:

HKEY_CURRENT_USER\Software\Microsoft\
Internet Account Manager\Accounts\Active Directory GC
LDAP Server ID = "0"

HKEY_CURRENT_USER\Software\Microsoft\
Internet Account Manager\Accounts\Bigfoot
LDAP Server ID = "1"

HKEY_CURRENT_USER\Software\Microsoft\
Internet Account Manager\Accounts\VeriSign
LDAP Server ID = "2"

HKEY_CURRENT_USER\Software\Microsoft\
Internet Account Manager\Accounts\WhoWhere
LDAP Server ID = "3"

HKEY_CURRENT_USER\Software\Microsoft\
Internet Account Manager
Server ID = "4"

HKEY_CURRENT_USER\Software\Microsoft\
Internet Account Manager\Accounts
PreConfigVer = "4"

HKEY_CURRENT_USER\Software\Microsoft\
Internet Account Manager\Accounts
PreConfigVerNTDS = "1"

HKEY_CURRENT_USER\Software\Microsoft\
Internet Account Manager\Accounts\Active Directory GC
Account Name = "Active Directory"

HKEY_CURRENT_USER\Software\Microsoft\
Internet Account Manager\Accounts\Active Directory GC
LDAP Server = "NULL"

HKEY_CURRENT_USER\Software\Microsoft\
Internet Account Manager\Accounts\Active Directory GC
LDAP Search Return = "64"

HKEY_CURRENT_USER\Software\Microsoft\
Internet Account Manager\Accounts\Active Directory GC
LDAP Timeout = "3c"

HKEY_CURRENT_USER\Software\Microsoft\
Internet Account Manager\Accounts\Active Directory GC
LDAP Authentication = "2"

HKEY_CURRENT_USER\Software\Microsoft\
Internet Account Manager\Accounts\Active Directory GC
LDAP Simple Search = "0"

HKEY_CURRENT_USER\Software\Microsoft\
Internet Account Manager\Accounts\Active Directory GC
LDAP Bind DN = "0"

HKEY_CURRENT_USER\Software\Microsoft\
Internet Account Manager\Accounts\Active Directory GC
LDAP Port = "cc4"

HKEY_CURRENT_USER\Software\Microsoft\
Internet Account Manager\Accounts\Active Directory GC
LDAP Resolve Flag = "1"

HKEY_CURRENT_USER\Software\Microsoft\
Internet Account Manager\Accounts\Active Directory GC
LDAP Secure Connection = "0"

HKEY_CURRENT_USER\Software\Microsoft\
Internet Account Manager\Accounts\Active Directory GC
LDAP User Name = "NULL"

HKEY_CURRENT_USER\Software\Microsoft\
Internet Account Manager\Accounts\Active Directory GC
LDAP Search Base = "NULL"

HKEY_CURRENT_USER\Software\Microsoft\
Internet Account Manager\Accounts\Bigfoot
Account Name = "Bigfoot Internet Directory Service"

HKEY_CURRENT_USER\Software\Microsoft\
Internet Account Manager\Accounts\Bigfoot
LDAP Server = "ldap.bigfoot.com"

HKEY_CURRENT_USER\Software\Microsoft\
Internet Account Manager\Accounts\Bigfoot
LDAP URL = "http://www.{BLOCKED}t.com"

HKEY_CURRENT_USER\Software\Microsoft\
Internet Account Manager\Accounts\Bigfoot
LDAP Search Return = "64"

HKEY_CURRENT_USER\Software\Microsoft\
Internet Account Manager\Accounts\Bigfoot
LDAP Timeout = "3c"

HKEY_CURRENT_USER\Software\Microsoft\
Internet Account Manager\Accounts\Bigfoot
LDAP Authentication = "0"

HKEY_CURRENT_USER\Software\Microsoft\
Internet Account Manager\Accounts\Bigfoot
LDAP Simple Search = "1"

HKEY_CURRENT_USER\Software\Microsoft\
Internet Account Manager\Accounts\Bigfoot
LDAP Logo = "%ProgramFiles%\Common Files\Services\bigfoot.bmp"

HKEY_CURRENT_USER\Software\Microsoft\
Internet Account Manager\Accounts\VeriSign
Account Name = "VeriSign Internet Directory Service"

HKEY_CURRENT_USER\Software\Microsoft\
Internet Account Manager\Accounts\VeriSign
LDAP Server = "directory.verisign.com"

HKEY_CURRENT_USER\Software\Microsoft\
Internet Account Manager\Accounts\VeriSign
LDAP URL = "http://www.{BLOCKED}gn.com"

HKEY_CURRENT_USER\Software\Microsoft\
Internet Account Manager\Accounts\VeriSign
LDAP Search Return = "64"

HKEY_CURRENT_USER\Software\Microsoft\
Internet Account Manager\Accounts\VeriSign
LDAP Timeout = "3c"

HKEY_CURRENT_USER\Software\Microsoft\
Internet Account Manager\Accounts\VeriSign
LDAP Authentication = "0"

HKEY_CURRENT_USER\Software\Microsoft\
Internet Account Manager\Accounts\VeriSign
LDAP Search Base = "NULL"

HKEY_CURRENT_USER\Software\Microsoft\
Internet Account Manager\Accounts\VeriSign
LDAP Simple Search = "1"

HKEY_CURRENT_USER\Software\Microsoft\
Internet Account Manager\Accounts\VeriSign
LDAP Logo = "%ProgramFiles%\Common Files\Services\verisign.bmp"

HKEY_CURRENT_USER\Software\Microsoft\
Internet Account Manager\Accounts\WhoWhere
Account Name = "WhoWhere Internet Directory Service"

HKEY_CURRENT_USER\Software\Microsoft\
Internet Account Manager\Accounts\WhoWhere
LDAP Server = "ldap.whowhere.com"

HKEY_CURRENT_USER\Software\Microsoft\
Internet Account Manager\Accounts\WhoWhere
LDAP URL = "http://www.{BLOCKED}re.com"

HKEY_CURRENT_USER\Software\Microsoft\
Internet Account Manager\Accounts\WhoWhere
LDAP Search Return = "64"

HKEY_CURRENT_USER\Software\Microsoft\
Internet Account Manager\Accounts\WhoWhere
LDAP Timeout = "3c"

HKEY_CURRENT_USER\Software\Microsoft\
Internet Account Manager\Accounts\WhoWhere
LDAP Authentication = "0"

HKEY_CURRENT_USER\Software\Microsoft\
Internet Account Manager\Accounts\WhoWhere
LDAP Simple Search = "1"

HKEY_CURRENT_USER\Software\Microsoft\
Internet Account Manager\Accounts\WhoWhere
LDAP Logo = "%ProgramFiles%\Common Files\Services\whowhere.bmp"

HKEY_CURRENT_USER\Software\Microsoft\
Internet Account Manager
Default LDAP Account = "Active Directory GC"

HKEY_CURRENT_USER\Software\Microsoft\
WAB\WAB4
OlkContactRefresh = "0"

HKEY_CURRENT_USER\Software\Microsoft\
WAB\WAB4
OlkFolderRefresh = "0"

HKEY_CURRENT_USER\Identities\{8A24C031-62FE-4BF5-94F0-BFD4FBCD674B}
Identity Ordinal = "1"

HKEY_CURRENT_USER\Software\Ozvyuhycdu?
2g6b7f8f = "b856d51f"

HKEY_CURRENT_USER\Software\Ozvyuhycdu?
2b975c29 = "fNVluIdnzIp4Ul5S91R/SQ==?_CHAR(0x07)_?"

HKEY_CURRENT_USER\Software\Ozvyuhycdu?
2g6b7f8f = "XtVWuA==?_CHAR(0x03)_ r?z?zs reserved."

HKEY_LOCAL_MACHINE\SYSTEM\ControlSet001\
Services\SharedAccess\Parameters\
FirewallPolicy\StandardProfile
DisableNotifications = "1"

HKEY_LOCAL_MACHINE\SYSTEM\ControlSet001\
Services\SharedAccess\Parameters\
FirewallPolicy\StandardProfile\GloballyOpenPorts\
List
2589:UDP = "2589:UDP:*:Enabled:UDP 2589"

HKEY_LOCAL_MACHINE\SYSTEM\ControlSet001\
Services\SharedAccess\Parameters\
FirewallPolicy\StandardProfile
DisableNotifications = "0"

HKEY_LOCAL_MACHINE\SYSTEM\ControlSet001\
Services\SharedAccess\Parameters\
FirewallPolicy\StandardProfile\GloballyOpenPorts\
List
6731:TCP = "6731:TCP:*:Enabled:TCP 6731"

HKEY_CURRENT_USER\Software\Ozvyuhycdu?
15h35be3 = "U99WuPx9+YotUhVS?_CHAR(0x05)__CHAR(0x01)_O?z?znalFilename"

HKEY_CURRENT_USER\Software\Ozvyuhycdu?
298j4c96 = "{random values}"

HKEY_CURRENT_USER\Software\Ozvyuhycdu?
298j4c96 = "{random characters}"

HKEY_CURRENT_USER\Software\Ozvyuhycdu?
34c3j52a = "{random values}"

HKEY_CURRENT_USER\Software\Ozvyuhycdu?
34c3j52a = "{random characters}"

HKEY_CURRENT_USER\Software\Ozvyuhycdu?
197b4e6d = "TtVWuLdn+YotUhVSmlQPSRnBnPYc1oTDXQEQN3z3/XWqhTR8CG_CHAR(0x0C)_"

HKEY_CURRENT_USER\Software\Ozvyuhycdu?
10d28hdj = "lPEp6z1bHMB8f4uNRK8igtwzPng9hw+O_CHAR(0x1B)_g_CHAR(0x0F)_"

HKEY_CURRENT_USER\Software\Ozvyuhycdu?
197b4e6d = "TtVWuLdn+YotUhVSmlQPSRnBnPYc1oTDXQEQN3z3/XWqhTR8CG_CHAR(0x08)_"

HKEY_CURRENT_USER\Software\Ozvyuhycdu?
10d28hdj = "{random values}"

HKEY_CURRENT_USER\Software\Ozvyuhycdu?
197b4e6d = "{random values}"

HKEY_CURRENT_USER\Software\Ozvyuhycdu?
2g6b7f8f = "b856d55f"

It modifies the following registry entries:

HKEY_CURRENT_USER\Identities
Identity Ordinal = "2"

(Note: The default value data of the said registry entry is 1.)

HKEY_CURRENT_USER\SessionInformation
ProgramCount = "2"

(Note: The default value data of the said registry entry is 2.)

HKEY_CURRENT_USER\SessionInformation
ProgramCount = "3"

(Note: The default value data of the said registry entry is 2.)

Dropping Routine

This Trojan drops the following files:

%User Temp%\obcet.exe
yieso.exe
%User Temp%\Taka\bovido.exe
%User Profile%\Application Data\ikoxi.enq
%User Profile%\Address Book\Wilbert.wab
%System%\drivers\2cd97.sys
%User Temp%\RSMB069\/heap170id2.exe
%User Temp%\IHNB4C2\/b02.exe
%System%\ncxvbyva.exe
%User Profile%\ncxvbyva.exe

Other Details

This Trojan connects to the following possibly malicious URL:

http://{BLOCKED}nds.com/images/2305UKmp.zip
http://{BLOCKED}nds.com/Scripts/heap170id2.exe
http://{BLOCKED}nds.com/acc/b02.exe
{BLOCKED}2.216.124
{BLOCKED}.65.162
{BLOCKED}.20.73
{BLOCKED}5.123.32
{BLOCKED}.228.49
{BLOCKED}252.150
{BLOCKED}5.220.133
{BLOCKED}.21.89
{BLOCKED}19.164
{BLOCKED}34.43
{BLOCKED}.104.151
{BLOCKED}.59.216
{BLOCKED}0.110.180
{BLOCKED}.198.93

It deletes itself after execution.

This report is generated via an automated analysis system.

SOLUTION

Minimum Scan Engine: 9.700

Step 1

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

Step 2

Restart in Safe Mode

[ Learn More ]

Step 3

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_CURRENT_USER\Software
- Ozvyuhycdu

In HKEY_CURRENT_USER\Software\Microsoft
- Internet Account Manager

In HKEY_CURRENT_USER\Software\Microsoft\Internet Account Manager
- Accounts

In HKEY_CURRENT_USER\Software\Microsoft\Internet Account Manager\Accounts
- Active Directory GC

In HKEY_CURRENT_USER\Software\Microsoft\Internet Account Manager\Accounts
- Bigfoot

In HKEY_CURRENT_USER\Software\Microsoft\Internet Account Manager\Accounts
- VeriSign

In HKEY_CURRENT_USER\Software\Microsoft\Internet Account Manager\Accounts
- WhoWhere

In HKEY_CURRENT_USER\Software\Microsoft\WAB\WAB4
- Wab File Name

In HKEY_CURRENT_USER\Software
- Ozvyuhycdu?

Step 4

Delete this registry value

[ Learn More ]

In HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Run
- Bovido = "%User Temp%\Taka\bovido.exe "

In HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Run
- ncxvbyva = "%System%\ncxvbyva.exe"

In HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Run
- ncxvbyva = "%User Profile%\ncxvbyva.exe"

In HKEY_CURRENT_USER\Software\Microsoft\Internet Account Manager\Accounts\Active Directory GC
- LDAP Server ID = "0"

In HKEY_CURRENT_USER\Software\Microsoft\Internet Account Manager\Accounts\Bigfoot
- LDAP Server ID = "1"

In HKEY_CURRENT_USER\Software\Microsoft\Internet Account Manager\Accounts\VeriSign
- LDAP Server ID = "2"

In HKEY_CURRENT_USER\Software\Microsoft\Internet Account Manager\Accounts\WhoWhere
- LDAP Server ID = "3"

In HKEY_CURRENT_USER\Software\Microsoft\Internet Account Manager
- Server ID = "4"

In HKEY_CURRENT_USER\Software\Microsoft\Internet Account Manager\Accounts
- PreConfigVer = "4"

In HKEY_CURRENT_USER\Software\Microsoft\Internet Account Manager\Accounts
- PreConfigVerNTDS = "1"

In HKEY_CURRENT_USER\Software\Microsoft\Internet Account Manager\Accounts\Active Directory GC
- Account Name = "Active Directory"

In HKEY_CURRENT_USER\Software\Microsoft\Internet Account Manager\Accounts\Active Directory GC
- LDAP Server = "NULL"

In HKEY_CURRENT_USER\Software\Microsoft\Internet Account Manager\Accounts\Active Directory GC
- LDAP Search Return = "64"

In HKEY_CURRENT_USER\Software\Microsoft\Internet Account Manager\Accounts\Active Directory GC
- LDAP Timeout = "3c"

In HKEY_CURRENT_USER\Software\Microsoft\Internet Account Manager\Accounts\Active Directory GC
- LDAP Authentication = "2"

In HKEY_CURRENT_USER\Software\Microsoft\Internet Account Manager\Accounts\Active Directory GC
- LDAP Simple Search = "0"

In HKEY_CURRENT_USER\Software\Microsoft\Internet Account Manager\Accounts\Active Directory GC
- LDAP Bind DN = "0"

In HKEY_CURRENT_USER\Software\Microsoft\Internet Account Manager\Accounts\Active Directory GC
- LDAP Port = "cc4"

In HKEY_CURRENT_USER\Software\Microsoft\Internet Account Manager\Accounts\Active Directory GC
- LDAP Resolve Flag = "1"

In HKEY_CURRENT_USER\Software\Microsoft\Internet Account Manager\Accounts\Active Directory GC
- LDAP Secure Connection = "0"

In HKEY_CURRENT_USER\Software\Microsoft\Internet Account Manager\Accounts\Active Directory GC
- LDAP User Name = "NULL"

In HKEY_CURRENT_USER\Software\Microsoft\Internet Account Manager\Accounts\Active Directory GC
- LDAP Search Base = "NULL"

In HKEY_CURRENT_USER\Software\Microsoft\Internet Account Manager\Accounts\Bigfoot
- Account Name = "Bigfoot Internet Directory Service"

In HKEY_CURRENT_USER\Software\Microsoft\Internet Account Manager\Accounts\Bigfoot
- LDAP Server = "ldap.bigfoot.com"

In HKEY_CURRENT_USER\Software\Microsoft\Internet Account Manager\Accounts\Bigfoot
- LDAP URL = "http://www.{BLOCKED}t.com"

In HKEY_CURRENT_USER\Software\Microsoft\Internet Account Manager\Accounts\Bigfoot
- LDAP Search Return = "64"

In HKEY_CURRENT_USER\Software\Microsoft\Internet Account Manager\Accounts\Bigfoot
- LDAP Timeout = "3c"

In HKEY_CURRENT_USER\Software\Microsoft\Internet Account Manager\Accounts\Bigfoot
- LDAP Authentication = "0"

In HKEY_CURRENT_USER\Software\Microsoft\Internet Account Manager\Accounts\Bigfoot
- LDAP Simple Search = "1"

In HKEY_CURRENT_USER\Software\Microsoft\Internet Account Manager\Accounts\Bigfoot
- LDAP Logo = "%ProgramFiles%\Common Files\Services\bigfoot.bmp"

In HKEY_CURRENT_USER\Software\Microsoft\Internet Account Manager\Accounts\VeriSign
- Account Name = "VeriSign Internet Directory Service"

In HKEY_CURRENT_USER\Software\Microsoft\Internet Account Manager\Accounts\VeriSign
- LDAP Server = "directory.verisign.com"

In HKEY_CURRENT_USER\Software\Microsoft\Internet Account Manager\Accounts\VeriSign
- LDAP URL = "http://www.{BLOCKED}gn.com"

In HKEY_CURRENT_USER\Software\Microsoft\Internet Account Manager\Accounts\VeriSign
- LDAP Search Return = "64"

In HKEY_CURRENT_USER\Software\Microsoft\Internet Account Manager\Accounts\VeriSign
- LDAP Timeout = "3c"

In HKEY_CURRENT_USER\Software\Microsoft\Internet Account Manager\Accounts\VeriSign
- LDAP Authentication = "0"

In HKEY_CURRENT_USER\Software\Microsoft\Internet Account Manager\Accounts\VeriSign
- LDAP Search Base = "NULL"

In HKEY_CURRENT_USER\Software\Microsoft\Internet Account Manager\Accounts\VeriSign
- LDAP Simple Search = "1"

In HKEY_CURRENT_USER\Software\Microsoft\Internet Account Manager\Accounts\VeriSign
- LDAP Logo = "%ProgramFiles%\Common Files\Services\verisign.bmp"

In HKEY_CURRENT_USER\Software\Microsoft\Internet Account Manager\Accounts\WhoWhere
- Account Name = "WhoWhere Internet Directory Service"

In HKEY_CURRENT_USER\Software\Microsoft\Internet Account Manager\Accounts\WhoWhere
- LDAP Server = "ldap.whowhere.com"

In HKEY_CURRENT_USER\Software\Microsoft\Internet Account Manager\Accounts\WhoWhere
- LDAP URL = "http://www.{BLOCKED}re.com"

In HKEY_CURRENT_USER\Software\Microsoft\Internet Account Manager\Accounts\WhoWhere
- LDAP Search Return = "64"

In HKEY_CURRENT_USER\Software\Microsoft\Internet Account Manager\Accounts\WhoWhere
- LDAP Timeout = "3c"

In HKEY_CURRENT_USER\Software\Microsoft\Internet Account Manager\Accounts\WhoWhere
- LDAP Authentication = "0"

In HKEY_CURRENT_USER\Software\Microsoft\Internet Account Manager\Accounts\WhoWhere
- LDAP Simple Search = "1"

In HKEY_CURRENT_USER\Software\Microsoft\Internet Account Manager\Accounts\WhoWhere
- LDAP Logo = "%ProgramFiles%\Common Files\Services\whowhere.bmp"

In HKEY_CURRENT_USER\Software\Microsoft\Internet Account Manager
- Default LDAP Account = "Active Directory GC"

In HKEY_CURRENT_USER\Software\Microsoft\WAB\WAB4
- OlkContactRefresh = "0"

In HKEY_CURRENT_USER\Software\Microsoft\WAB\WAB4
- OlkFolderRefresh = "0"

In HKEY_CURRENT_USER\Identities\{8A24C031-62FE-4BF5-94F0-BFD4FBCD674B}
- Identity Ordinal = "1"

In HKEY_CURRENT_USER\Software\Ozvyuhycdu?
- 2g6b7f8f = "b856d51f"

In HKEY_CURRENT_USER\Software\Ozvyuhycdu?
- 2b975c29 = "fNVluIdnzIp4Ul5S91R/SQ==?_CHAR(0x07)_?"

In HKEY_CURRENT_USER\Software\Ozvyuhycdu?
- 2g6b7f8f = "XtVWuA==?_CHAR(0x03)_ r?z?zs reserved."

In HKEY_LOCAL_MACHINE\SYSTEM\ControlSet001\Services\SharedAccess\Parameters\FirewallPolicy\StandardProfile
- DisableNotifications = "1"

In HKEY_LOCAL_MACHINE\SYSTEM\ControlSet001\Services\SharedAccess\Parameters\FirewallPolicy\StandardProfile\GloballyOpenPorts\List
- 2589:UDP = "2589:UDP:*:Enabled:UDP 2589"

In HKEY_LOCAL_MACHINE\SYSTEM\ControlSet001\Services\SharedAccess\Parameters\FirewallPolicy\StandardProfile
- DisableNotifications = "0"

In HKEY_LOCAL_MACHINE\SYSTEM\ControlSet001\Services\SharedAccess\Parameters\FirewallPolicy\StandardProfile\GloballyOpenPorts\List
- 6731:TCP = "6731:TCP:*:Enabled:TCP 6731"

In HKEY_CURRENT_USER\Software\Ozvyuhycdu?
- 15h35be3 = "U99WuPx9+YotUhVS?_CHAR(0x05)__CHAR(0x01)_O?z?znalFilename"

In HKEY_CURRENT_USER\Software\Ozvyuhycdu?
- 298j4c96 = "{random values}"

In HKEY_CURRENT_USER\Software\Ozvyuhycdu?
- 298j4c96 = "{random characters}"

In HKEY_CURRENT_USER\Software\Ozvyuhycdu?
- 34c3j52a = "{random values}"

In HKEY_CURRENT_USER\Software\Ozvyuhycdu?
- 34c3j52a = "{random characters}"

In HKEY_CURRENT_USER\Software\Ozvyuhycdu?
- 197b4e6d = "TtVWuLdn+YotUhVSmlQPSRnBnPYc1oTDXQEQN3z3/XWqhTR8CG_CHAR(0x0C)_"

In HKEY_CURRENT_USER\Software\Ozvyuhycdu?
- 10d28hdj = "lPEp6z1bHMB8f4uNRK8igtwzPng9hw+O_CHAR(0x1B)_g_CHAR(0x0F)_"

In HKEY_CURRENT_USER\Software\Ozvyuhycdu?
- 197b4e6d = "TtVWuLdn+YotUhVSmlQPSRnBnPYc1oTDXQEQN3z3/XWqhTR8CG_CHAR(0x08)_"

In HKEY_CURRENT_USER\Software\Ozvyuhycdu?
- 10d28hdj = "{random values}"

In HKEY_CURRENT_USER\Software\Ozvyuhycdu?
- 197b4e6d = "{random values}"

In HKEY_CURRENT_USER\Software\Ozvyuhycdu?
- 2g6b7f8f = "b856d55f"

To delete the registry value this malware/grayware created:

Open Registry Editor.
» For Windows 2000, Windows XP, and Windows Server 2003 users, click Start>Run, type regedit in the text box provided, and then press Enter.
» For Windows Vista, Windows 7, and Windows Server 2008 users, click the Start button, type regedit in the Search input field then press Enter.
» For Windows 8, Windows 8.1, and Windows Server 2012 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:
Bovido = "%User Temp%\Taka\bovido.exe "
In the left panel, double-click the following:
HKEY_LOCAL_MACHINE>SOFTWARE>Microsoft>Windows>CurrentVersion>Run
In the right panel, locate and delete the entry:
ncxvbyva = "%System%\ncxvbyva.exe"
Again In the right panel, locate and delete the entry:
ncxvbyva = "%User Profile%\ncxvbyva.exe"
In the left panel, double-click the following:
HKEY_CURRENT_USER>Software>Microsoft>Internet Account Manager>Accounts>Active Directory GC
In the right panel, locate and delete the entry:
LDAP Server ID = "0"
In the left panel, double-click the following:
HKEY_CURRENT_USER>Software>Microsoft>Internet Account Manager>Accounts>Bigfoot
In the right panel, locate and delete the entry:
LDAP Server ID = "1"
In the left panel, double-click the following:
HKEY_CURRENT_USER>Software>Microsoft>Internet Account Manager>Accounts>VeriSign
In the right panel, locate and delete the entry:
LDAP Server ID = "2"
In the left panel, double-click the following:
HKEY_CURRENT_USER>Software>Microsoft>Internet Account Manager>Accounts>WhoWhere
In the right panel, locate and delete the entry:
LDAP Server ID = "3"
In the left panel, double-click the following:
HKEY_CURRENT_USER>Software>Microsoft>Internet Account Manager
In the right panel, locate and delete the entry:
Server ID = "4"
In the left panel, double-click the following:
HKEY_CURRENT_USER>Software>Microsoft>Internet Account Manager>Accounts
In the right panel, locate and delete the entry:
PreConfigVer = "4"
Again In the right panel, locate and delete the entry:
PreConfigVerNTDS = "1"
Again In the right panel, locate and delete the entry:
Account Name = "Active Directory"
Again In the right panel, locate and delete the entry:
LDAP Server = "NULL"
Again In the right panel, locate and delete the entry:
LDAP Search Return = "64"
Again In the right panel, locate and delete the entry:
LDAP Timeout = "3c"
Again In the right panel, locate and delete the entry:
LDAP Authentication = "2"
Again In the right panel, locate and delete the entry:
LDAP Simple Search = "0"
Again In the right panel, locate and delete the entry:
LDAP Bind DN = "0"
Again In the right panel, locate and delete the entry:
LDAP Port = "cc4"
Again In the right panel, locate and delete the entry:
LDAP Resolve Flag = "1"
Again In the right panel, locate and delete the entry:
LDAP Secure Connection = "0"
Again In the right panel, locate and delete the entry:
LDAP User Name = "NULL"
Again In the right panel, locate and delete the entry:
LDAP Search Base = "NULL"
Again In the right panel, locate and delete the entry:
Account Name = "Bigfoot Internet Directory Service"
Again In the right panel, locate and delete the entry:
LDAP Server = "ldap.bigfoot.com"
Again In the right panel, locate and delete the entry:
LDAP URL = "http://www.{BLOCKED}t.com"
Again In the right panel, locate and delete the entry:
LDAP Search Return = "64"
Again In the right panel, locate and delete the entry:
LDAP Timeout = "3c"
Again In the right panel, locate and delete the entry:
LDAP Authentication = "0"
Again In the right panel, locate and delete the entry:
LDAP Simple Search = "1"
Again In the right panel, locate and delete the entry:
LDAP Logo = "%ProgramFiles%\Common Files\Services\bigfoot.bmp"
Again In the right panel, locate and delete the entry:
Account Name = "VeriSign Internet Directory Service"
Again In the right panel, locate and delete the entry:
LDAP Server = "directory.verisign.com"
Again In the right panel, locate and delete the entry:
LDAP URL = "http://www.{BLOCKED}gn.com"
Again In the right panel, locate and delete the entry:
LDAP Search Return = "64"
Again In the right panel, locate and delete the entry:
LDAP Timeout = "3c"
Again In the right panel, locate and delete the entry:
LDAP Authentication = "0"
Again In the right panel, locate and delete the entry:
LDAP Search Base = "NULL"
Again In the right panel, locate and delete the entry:
LDAP Simple Search = "1"
Again In the right panel, locate and delete the entry:
LDAP Logo = "%ProgramFiles%\Common Files\Services\verisign.bmp"
Again In the right panel, locate and delete the entry:
Account Name = "WhoWhere Internet Directory Service"
Again In the right panel, locate and delete the entry:
LDAP Server = "ldap.whowhere.com"
Again In the right panel, locate and delete the entry:
LDAP URL = "http://www.{BLOCKED}re.com"
Again In the right panel, locate and delete the entry:
LDAP Search Return = "64"
Again In the right panel, locate and delete the entry:
LDAP Timeout = "3c"
Again In the right panel, locate and delete the entry:
LDAP Authentication = "0"
Again In the right panel, locate and delete the entry:
LDAP Simple Search = "1"
Again In the right panel, locate and delete the entry:
LDAP Logo = "%ProgramFiles%\Common Files\Services\whowhere.bmp"
Again In the right panel, locate and delete the entry:
Default LDAP Account = "Active Directory GC"
In the left panel, double-click the following:
HKEY_CURRENT_USER>Software>Microsoft>WAB>WAB4
In the right panel, locate and delete the entry:
OlkContactRefresh = "0"
Again In the right panel, locate and delete the entry:
OlkFolderRefresh = "0"
In the left panel, double-click the following:
HKEY_CURRENT_USER>Identities>{8A24C031-62FE-4BF5-94F0-BFD4FBCD674B}
In the right panel, locate and delete the entry:
Identity Ordinal = "1"
In the left panel, double-click the following:
HKEY_CURRENT_USER>Software>Ozvyuhycdu?
In the right panel, locate and delete the entry:
2g6b7f8f = "b856d51f"
Again In the right panel, locate and delete the entry:
2b975c29 = "fNVluIdnzIp4Ul5S91R/SQ
Again In the right panel, locate and delete the entry:
2g6b7f8f = "XtVWuA
In the left panel, double-click the following:
HKEY_LOCAL_MACHINE>SYSTEM>ControlSet001>Services>SharedAccess>Parameters>FirewallPolicy>StandardProfile
In the right panel, locate and delete the entry:
DisableNotifications = "1"
In the left panel, double-click the following:
HKEY_LOCAL_MACHINE>SYSTEM>ControlSet001>Services>SharedAccess>Parameters>FirewallPolicy>StandardProfile>GloballyOpenPorts>List
In the right panel, locate and delete the entry:
2589:UDP = "2589:UDP:*:Enabled:UDP 2589"
Again In the right panel, locate and delete the entry:
DisableNotifications = "0"
Again In the right panel, locate and delete the entry:
6731:TCP = "6731:TCP:*:Enabled:TCP 6731"
Again In the right panel, locate and delete the entry:
15h35be3 = "U99WuPx9+YotUhVS?_CHAR(0x05)__CHAR(0x01)_O?z?znalFilename"
Again In the right panel, locate and delete the entry:
298j4c96 = "{random values}"
Again In the right panel, locate and delete the entry:
298j4c96 = "{random characters}"
Again In the right panel, locate and delete the entry:
34c3j52a = "{random values}"
Again In the right panel, locate and delete the entry:
34c3j52a = "{random characters}"
Again In the right panel, locate and delete the entry:
197b4e6d = "TtVWuLdn+YotUhVSmlQPSRnBnPYc1oTDXQEQN3z3/XWqhTR8CG_CHAR(0x0C)_"
Again In the right panel, locate and delete the entry:
10d28hdj = "lPEp6z1bHMB8f4uNRK8igtwzPng9hw+O_CHAR(0x1B)_g_CHAR(0x0F)_"
Again In the right panel, locate and delete the entry:
197b4e6d = "TtVWuLdn+YotUhVSmlQPSRnBnPYc1oTDXQEQN3z3/XWqhTR8CG_CHAR(0x08)_"
Again In the right panel, locate and delete the entry:
10d28hdj = "{random values}"
Again In the right panel, locate and delete the entry:
197b4e6d = "{random values}"
Again In the right panel, locate and delete the entry:
2g6b7f8f = "b856d55f"
Close Registry Editor.

Step 5

Restore these modified registry values

[ Learn More ]

Important:Editing the Windows Registry incorrectly can lead to irreversible system malfunction. Please do this only if you know how to or you can seek your system administrator's help. You may also check out this Microsoft article first before modifying your computer's registry.

In HKEY_CURRENT_USER\Identities
- From: Identity Ordinal = "2"
  To: Identity Ordinal = ""1""

In HKEY_CURRENT_USER\SessionInformation
- From: ProgramCount = "2"
  To: ProgramCount = ""2""

In HKEY_CURRENT_USER\SessionInformation
- From: ProgramCount = "3"
  To: ProgramCount = ""2""

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.

%User Temp%\obcet.exe
yieso.exe
%User Temp%\Taka\bovido.exe
%User Profile%\Application Data\ikoxi.enq
%User Profile%\Address Book\Wilbert.wab
%System%\drivers\2cd97.sys
%User Temp%\RSMB069\/heap170id2.exe
%User Temp%\IHNB4C2\/b02.exe
%System%\ncxvbyva.exe
%User Profile%\ncxvbyva.exe

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.

%User Temp%\Taka
%User Profile%\Microsoft\Address Book
%User Temp%\RSMB069
%User Temp%\IHNB4C2

Step 8

Restart in normal mode and scan your computer with your Trend Micro product for files detected as TROJ_UPATRE.AAS. 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.

%User Temp%\yieso.exe
%Temp%\scs14.tmp
%Temp%\scs17.tmp

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