TSPY_FAREIT.EF
PWS:Win32/Fareit.gen!E (Microsoft); PWS-Zbot.gen.aiz (McAfee); Trojan.Win32.Generic!BT (Sunbelt)
Windows 2000, Windows XP, Windows Server 2003
Threat Type: Spyware
Destructiveness: No
Encrypted:
In the wild: Yes
OVERVIEW
This spyware 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
91,429 bytes
EXE
No
18 Oct 2012
Arrival Details
This spyware 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 spyware creates the following folders:
- %User Profile%\Application Data\Soijaw
- %User Profile%\Application Data\Xuxoq
(Note: %User Profile% is the current user's profile folder, which is usually C:\Windows\Profiles\{user name} on Windows 98 and ME, C:\WINNT\Profiles\{user name} on Windows NT, and C:\Documents and Settings\{user name} on Windows 2000, XP, and Server 2003.)
Other System Modifications
This spyware adds the following registry keys:
HKEY_CURRENT_USER\Software\WinRAR
HKEY_CURRENT_USER\Software\Microsoft\
Upyde
HKEY_CURRENT_USER\Software\Microsoft\
Iwahb
It adds the following registry entries:
HKEY_CURRENT_USER\Software\WinRAR
HWID = "{random values}"
HKEY_CURRENT_USER\Software\WinRAR
Client Hash = "{random values}"
HKEY_CURRENT_USER\Software\WinRAR
0FCAD2E68268C40E4E414859CF2608C9 = "{random values}"
HKEY_CURRENT_USER\Software\Microsoft\
Upyde
2egah5cd = "{random values}"
Dropping Routine
This spyware drops the following files:
- %User Temp%\55796.exe
- %User Temp%\60921.exe
- %User Profile%\Application Data\Soijaw
- %User Profile%\Soijaw\uqjiu.exe
- %Application Data%\tynojy.ogy
- %User Profile%\Application Data\Xuxoq
- %User Profile%\Xuxoq\uqku.exe
- %Application Data%\veygw.dyf
(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, XP, and Server 2003.. %User Profile% is the current user's profile folder, which is usually C:\Windows\Profiles\{user name} on Windows 98 and ME, C:\WINNT\Profiles\{user name} on Windows NT, and C:\Documents and Settings\{user name} on Windows 2000, XP, and Server 2003.. %Application Data% is the current user's Application Data folder, which is usually C:\Windows\Profiles\{user name}\Application Data on Windows 98 and ME, C:\WINNT\Profiles\{user name}\Application Data on Windows NT, and C:\Documents and Settings\{user name}\Local Settings\Application Data on Windows 2000, XP, and Server 2003.)
Other Details
This spyware deletes itself after execution.
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_CURRENT_USER\Software
- WinRAR
- In HKEY_CURRENT_USER\Software\Microsoft
- Upyde
- In HKEY_CURRENT_USER\Software\Microsoft
- Iwahb
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_CURRENT_USER\Software\WinRAR
- HWID = "{random values}"
- In HKEY_CURRENT_USER\Software\WinRAR
- Client Hash = "{random values}"
- In HKEY_CURRENT_USER\Software\WinRAR
- 0FCAD2E68268C40E4E414859CF2608C9 = "{random values}"
- In HKEY_CURRENT_USER\Software\Microsoft\Upyde
- 2egah5cd = "{random values}"
Step 4
Search and delete these files
- %User Temp%\55796.exe
- %User Temp%\60921.exe
- %User Profile%\Application Data\Soijaw
- %User Profile%\Soijaw\uqjiu.exe
- %Application Data%\tynojy.ogy
- %User Profile%\Application Data\Xuxoq
- %User Profile%\Xuxoq\uqku.exe
- %Application Data%\veygw.dyf
Step 5
Search and delete these folders
- %User Profile%\Application Data\Soijaw
- %User Profile%\Application Data\Xuxoq
Step 6
Scan your computer with your Trend Micro product to delete files detected as TSPY_FAREIT.EF. 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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