TROJ_SIREFEF.KN
Trojan:Win32/Sirefef.AA (Microsoft); Trojan.Zeroaccess!inf (Symantec); ZeroAccess.dr.gen.d (McAfee); Rootkit.Win32.ZAccess.wh (Kaspersky)
Windows 2000, Windows XP, Windows Server 2003
Threat Type: Trojan
Destructiveness: No
Encrypted: No
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 arrives as a component bundled with malware/grayware packages.
It requires its main component to successfully perform its intended routine.
TECHNICAL DETAILS
5,120 bytes
DLL
Yes
10 Feb 2012
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.
It arrives as a component bundled with malware/grayware packages.
Other Details
This Trojan requires its main component to successfully perform its intended routine.
NOTES:
This Trojan executes the code stored in its extended attributes in the file system. It is registered as a service.
SOLUTION
9.200
8.766.04
10 Feb 2012
8.767.00
10 Feb 2012
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
Scan your computer with your Trend Micro product and note files detected as TROJ_SIREFEF.KN
Step 3
Restart in Safe Mode
Step 4
Search and delete the file detected as TROJ_SIREFEF.KN
Step 5
Restart in normal mode and scan your computer with your Trend Micro product for files detected as TROJ_SIREFEF.KN. 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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