TROJ_DLOAD.JKZQ

October 08, 2012
 Analysis by: jasperm
 ALIASES:

Microsoft: TrojanDownloader:Win32/Abgade.A, Kaspersky: Trojan-Downloader.Win32.Small.azzs, Hbedv: TR/Dldr.Agent.aai

 PLATFORM:

Windows 2000, XP, Server 2003

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

  • Threat Type: Trojan

  • Destructiveness: No

  • Encrypted: Yes

  • In the wild: Yes

  OVERVIEW

It accesses websites to download files detected as TROJ_PIKER.AC and TROJ_VB.MAN.

This Trojan may be dropped by other malware. It may be unknowingly downloaded by a user while visiting malicious websites.

It deletes itself after execution.

  TECHNICAL DETAILS

File Size:

9,728 bytes

File Type:

PE

Memory Resident:

No

Initial Samples Received Date:

13 Nov 2010

Payload:

Downloads files

Arrival Details

This Trojan may be dropped by other malware.

It may be unknowingly downloaded by a user while visiting malicious websites.

Download Routine

This Trojan accesses the following websites to download files:

  • http://www.derquda.com/ert/klm1.txt - detected as TROJ_PIKER.AC
  • http://www.derquda.com/ert/lmn2.txt - inaccessible
  • http://www.derquda.com/ert/mno3.txt - inaccessible
  • http://www.derquda.com/ert/nop4.txt - detected as TROJ_VB.MAN

Other Details

This Trojan deletes itself after execution.

  SOLUTION

Minimum Scan Engine:

8.900

VSAPI PATTERN File:

7.619.00

VSAPI PATTERN Date:

13 Nov 2010

VSAPI PATTERN Date:

11/13/2010 12:00:00 AM

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_DLOAD.JKZQ

    • TROJ_PIKER.AC
    • TROJ_VB.MAN

Step 3

Scan your computer with your Trend Micro product to delete files detected as TROJ_DLOAD.JKZQ. 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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