arrow_back
search
close

TROJ_SIREFEF.SMTB

October 16, 2012
 ALIASES:

Trojan:Win32/Sirefef.AZ (Microsoft), ZeroAccess.en (McAfee), Win32/Sirefef.EV trojan (Eset)

 PLATFORM:

Windows 2000, Windows XP, Windows Server 2003

 OVERALL RISK RATING:
 DAMAGE POTENTIAL:
 DISTRIBUTION POTENTIAL:
 REPORTED INFECTION:

  • Threat Type: Trojan

  • Destructiveness: No

  • Encrypted: No

  • In the wild: Yes

  OVERVIEW

This Trojan may be dropped by other malware.

It requires its main component to successfully perform its intended routine. It is used to load and execute a file.

  TECHNICAL DETAILS

File Size:

Varies

File Type:

DLL

Memory Resident:

No

Initial Samples Received Date:

13 Oct 2012

Arrival Details

This Trojan may be dropped by other malware.

Installation

This Trojan drops the following copies of itself into the affected system:

  • %System%\n

(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.)

Other Details

This Trojan requires its main component to successfully perform its intended routine.

It is used to load and execute the following file:

  • \.\globalroot\systemroot\Installer\{GUID}\U\80000032.@

  SOLUTION

Minimum Scan Engine:

9.300

VSAPI OPR PATTERN File:

9.457.00

VSAPI OPR PATTERN Date:

13 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

Search and delete this file

[ Learn More ]
There may be some component files that are hidden. Please make sure you check the Search Hidden Files and Folders checkbox in the More advanced options option to include all hidden files and folders in the search result.
  • \\.\globalroot\systemroot\Installer\{GUID}\U\80000032.@

Step 3

Scan your computer with your Trend Micro product to delete files detected as TROJ_SIREFEF.SMTB. 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.