Analysis by: Cris Nowell Pantanilla
 PLATFORM:

Windows

 OVERALL RISK RATING:
 REPORTED INFECTION:

  • Threat Type: Trojan

  • Destructiveness: No

  • Encrypted:

  • In the wild: Yes

  OVERVIEW

This Trojan may be dropped by other malware.

  TECHNICAL DETAILS

File Size: 331 bytes
File Type: BAT
Memory Resident: No
Initial Samples Received Date: 11 Jul 2017

Arrival Details

This Trojan may be dropped by the following malware:

  • TROJ_KOVTER malware

NOTES:

This batch file is used by TROJ_KOVTER malware to execute its routines. It is part of a multi-component malware.

This malware executes the following commands:

  • start "qXwxgIRoFmPPTMJz2Yk" "%LOCALAPPDATA%\{random}\{random}.{random}"

Note that it uses a command from another component file. It does not execute properly without its main component.

  SOLUTION

Minimum Scan Engine: 9.850
FIRST VSAPI PATTERN FILE: 13.526.04
FIRST VSAPI PATTERN DATE: 11 Jul 2017
VSAPI OPR PATTERN File: 13.527.00
VSAPI OPR PATTERN Date: 12 Jul 2017

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 to delete files detected as BAT_KOVTER.GQF. 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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