Analysis by: Sabrina Lei Sioting
 PLATFORM:

Windows 2000, XP, 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 arrives as a file that exports the functions of other malware/grayware. It arrives as a component bundled with malware/grayware packages. It may be dropped by other malware.

It requires its main component to successfully perform its intended routine. It may be used by other malware in performing their malicious routines.

  TECHNICAL DETAILS

File Size: 21,504 bytes
File Type: DLL
Memory Resident: No
Initial Samples Received Date: 29 Sep 2010

Arrival Details

This Trojan arrives as a file that exports the functions of other malware/grayware.

It arrives as a component bundled with malware/grayware packages.

It may be dropped by the following malware:

  • TROJ_BREDO.TX

Other Details

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

  SOLUTION

Minimum Scan Engine: 8.900
VSAPI OPR PATTERN File: 07.500.04
VSAPI OPR PATTERN Date: 29 Sep 2010

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_SASFIS.TX

     TROJ_BREDO.TX

Step 3

Scan your computer with your Trend Micro product and note files detected as TROJ_SASFIS.TX

Step 4

Restart in Safe Mode

[ Learn More ]

Step 5

Search and delete the file detected as TROJ_SASFIS.TX

[ Learn More ]
Please make sure you check the Search Hidden Files and Folders checkbox in the More advanced options option to include all hidden files in the search result.


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