TSPY_FARFLI.A
Trojan:Win32/Sisron (Microsoft), a variant of Win32/Farfli.PF trojan (Eset), Trojan.Win32.Jorik (Ikarus), W32/Jorik_Yoddos.AFE!tr (Fortinet), W32/QQhelper.C.gen!Eldorado (generic, not disinfectable) (FPROT)
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, Dropped by other malware
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 drops copies of itself in the Windows Common Startup folder to enable its automatic execution at every system startup.
It gathers certain information on the affected computer.
It connects to certain websites to send and receive information.
TECHNICAL DETAILS
15,360 bytes
EXE
Yes
05 Oct 2012
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%\Quick.exe
- C:\documents and settings\All users\start menu\programs\start up\Quick.exe
(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.)
It adds the following mutexes to ensure that only one of its copies runs at any one time:
- {BLOCKED}u.014sf.com:1990
Autostart Technique
This spyware adds the following registry entries to enable its automatic execution at every system startup:
HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\
Windows\CurrentVersion\Run
Quick = "%System%\Quick.exe"
It drops copies of itself in the Windows Common Startup folder to enable its automatic execution at every system startup.
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}u.014sf.com:1990
SOLUTION
9.200
9.440.07
05 Oct 2012
9.441.00
05 Oct 2012
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
Identify and terminate files detected as TSPY_FARFLI.A
- 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 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.
- HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Run
- Quick = "%System%\Quick.exe"
Step 4
Scan your computer with your Trend Micro product to delete files detected as TSPY_FARFLI.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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