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INF_OTORUN.WKMQ

October 17, 2014
 ALIASES:

Worm/AutoRun(AVG)

 PLATFORM:

Windows

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

  • Threat Type: Trojan

  • Destructiveness: No

  • Encrypted:

  • In the wild: Yes

  OVERVIEW

This Trojan may be dropped by other malware.

It automatically executes files when a user opens a drive.

  TECHNICAL DETAILS

File Size:

Varies

File Type:

INF

Initial Samples Received Date:

10 Oct 2014

Arrival Details

This Trojan may be dropped by other malware.

Propagation

The said .INF file contains the following strings:

;{garbage}
[Autorun]
;{garbage}
open=CMD /C START DevMount003.{645FF040-5081-101B-9F08-00AA002F954E}\devmount-p32958195.x64
;{garbage}
icon=%windir%\system32\SHELL32.dll,3
;{garbage}
action=Browse the files on the device.
;{garbage}
shell\open=Open
;{garbage}
shell\open\command=CMD /C START DevMount003.{645FF040-5081-101B-9F08-00AA002F954E}\devmount-p32958195.x64
;{garbage}
shell\open\default=1
;{garbage}
shell\explore=Explore
;{garbage}
shell\explore\command=CMD /C START DevMount003.{645FF040-5081-101B-9F08-00AA002F954E}\devmount-p32958195.x64
;{garbage}
shell\search=Search...
;{garbage}
shell\search\command=CMD /C START DevMount003.{645FF040-5081-101B-9F08-00AA002F954E}\devmount-p32958195.x64
;{garbage}

Other Details

This Trojan automatically executes the following files when a user opens a drive:

  • {drive letter}:\DevMount003.{645FF040-5081-101B-9F08-00AA002F954E}\devmount-p32958195.x64

  SOLUTION

Minimum Scan Engine:

9.700

FIRST VSAPI PATTERN FILE:

11.202.04

FIRST VSAPI PATTERN DATE:

10 Oct 2014

VSAPI OPR PATTERN File:

11.203.00

VSAPI OPR PATTERN Date:

11 Oct 2014

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 INF_OTORUN.WKMQ. 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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