Threat Encyclopedia

TROJ_OTORUN.SMF

Publish date: October 08, 2012

ANALYSIS BY

kathleenno


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


It is an AUTORUN.INF file that is used as an autostart component of the malware WORM_OTORUN.ASH. This component is usually dropped into shared folders, along with the main malware's copy. Upon execution, it runs the main malware. As such, the malicious routines of WORM_OTORUN.ASH are exhibited on the affected system.

This Trojan may be dropped by other malware.

TECHNICAL DETAILS

File Size:

Varies

File Type:

INF

Initial Samples Received Date:

09 Mar 2011

Arrival Details

This Trojan may be dropped by the following malware:

  • WORM_OTORUN.ASH

NOTES:
It is an AUTORUN.INF file that is used as an autostart component of the malware WORM_OTORUN.ASH. This component is usually dropped into shared folders, along with the main malware's copy. Upon execution, it runs the main malware. As such, the malicious routines of WORM_OTORUN.ASH are exhibited on the affected system.

SOLUTION

Minimum Scan Engine:

8.900

VSAPI OPR PATTERN File:

7.889.00

VSAPI OPR PATTERN Date:

09 Mar 2011

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

Remove malware files dropped/downloaded by TROJ_OTORUN.SMF

Step 3

Scan your computer with your Trend Micro product to delete files detected as TROJ_OTORUN.SMF. 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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