TROJ_FAREIT.VR
PWS:Win32/Fareit.gen!C (Microsoft); PWS-Zbot-FATG!07B2550516F4 (McAfee); Downloader.Ponik (Symantec); Trojan-PSW.Win32.Tepfer.kqax (Kaspersky); Trojan.Win32.Reveton.a (v) (Sunbelt); Trojan horse PSW.Generic11.SGW (AVG)
Windows 2000, Windows XP, Windows Server 2003
![](/vinfo/imgFiles/legend.jpg)
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
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_CURRENT_USER\Software\WinRAR
HKEY_CURRENT_USER\Software\Classes\
clsid
HKEY_CURRENT_USER\clsid\{fbeb8a05-beee-4442-804e-409d6c4515e9}
HKEY_CURRENT_USER\clsid\{fbeb8a05-beee-4442-804e-409d6c4515e9}\
InprocServer32
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
CAF2AB2EE259D69FAF79A4606684F09D = "{random values}"
HKEY_CURRENT_USER\Software\WinRAR
02FDC35679C320A05437DEEFB6A7B5D3 = "{random values}"
HKEY_CURRENT_USER\clsid\{fbeb8a05-beee-4442-804e-409d6c4515e9}\
InprocServer32
ThreadingModel = "Both"
Dropping Routine
This Trojan drops the following files:
- %User Temp%\453078.exe
- %User Temp%\472343.exe
- %System Root%\RECYCLER
- %System Root%\RECYCLER\S-1-5-21-1645522239-1292428093-682003330-1003
- @
- n
- %System Root%\RECYCLER\S-1-5-18
- $IA289257A
(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, or C:\Users\{user name}\AppData\Local\Temp on Windows Vista and 7.. %System Root% is the root folder, which is usually C:\. It is also where the operating system is located.)
Other Details
This Trojan deletes itself after execution.
This report is generated via an automated analysis system.
SOLUTION
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
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\Classes
- clsid
- In HKEY_CURRENT_USER\clsid
- {fbeb8a05-beee-4442-804e-409d6c4515e9}
- In HKEY_CURRENT_USER\clsid\{fbeb8a05-beee-4442-804e-409d6c4515e9}
- InprocServer32
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
- CAF2AB2EE259D69FAF79A4606684F09D = "{random values}"
- In HKEY_CURRENT_USER\Software\WinRAR
- 02FDC35679C320A05437DEEFB6A7B5D3 = "{random values}"
- In HKEY_CURRENT_USER\clsid\{fbeb8a05-beee-4442-804e-409d6c4515e9}\InprocServer32
- ThreadingModel = "Both"
Step 4
Search and delete these components
- %User Temp%\453078.exe
- %User Temp%\472343.exe
- %System Root%\RECYCLER
- %System Root%\RECYCLER\S-1-5-21-1645522239-1292428093-682003330-1003
- @
- n
- %System Root%\RECYCLER\S-1-5-18
- $IA289257A
Step 5
Scan your computer with your Trend Micro product to delete files detected as TROJ_FAREIT.VR. 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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