TSPY_FARFLI.B
a variant of Win32/Agent.PEY trojan (Eset), Trojan:Win32/Malagent (Microsoft), Trojan-Dropper.Agent (Ikarus)
Windows 2000, Windows XP, Windows Server 2003
Threat Type: Spyware
Destructiveness: No
Encrypted: No
In the wild: Yes
OVERVIEW
Spammed via email, Downloaded from the Internet
This spyware arrives as an attachment to email messages spammed by other malware/grayware or malicious users. It arrives on a system as a file dropped by other malware or as a file downloaded unknowingly by users when visiting malicious sites.
It gathers certain information on the affected computer.
It connects to certain websites to send and receive information.
TECHNICAL DETAILS
28,672 bytes
EXE
Yes
04 Oct 2012
Connects to URLs/IPs
Arrival Details
This spyware arrives as an attachment to email messages spammed by other malware/grayware or malicious users.
It 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 drops the following copies of itself into the affected system:
- %System%\uvehopt.exe
(Note: %System% is the Windows system folder, which is usually C:\Windows\System32.)
It adds the following mutexes to ensure that only one of its copies runs at any one time:
- xi4ohax
It injects codes into the following process(es):
- svchost.exe
Autostart Technique
This spyware registers as a system service to ensure its automatic execution at every system startup by adding the following registry keys:
HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\
Services\MediabCenterg
HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\
Enum\Root\LEGACY_MEDIABCENTERG
Information Theft
This spyware gathers the following information on the affected computer:
- OS Version
- Disk Space
- Default Language
Other Details
This spyware connects to the following website to send and receive information:
- {BLOCKED}0.com:1433
SOLUTION
9.200
9.448.03
08 Oct 2012
9.449.00
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
Identify and terminate files detected as TSPY_FARFLI.B
- 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 3
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. Before you could do this, you must restart in Safe Mode. For instructions on how to do this, you may refer to this page If the preceding step requires you to restart in safe mode, you may proceed to edit the system registry.
- In HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services
- MediabCenterg
- MediabCenterg
- In HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Enum\Root
- LEGACY_MEDIABCENTERG
- LEGACY_MEDIABCENTERG
Step 4
Scan your computer with your Trend Micro product to delete files detected as TSPY_FARFLI.B. 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.
Did this description help? Tell us how we did.