JS_URSNIF.DJ

October 10, 2012
 Analysis by: Sabrina Lei Sioting
 ALIASES:

TrojanSpy:JS/Ursnif.A (Microsoft), Backdoor.Win32.Agent.bwci (Kaspersky), Trojan.Hanambot (Symantec),

 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

This Trojan may be dropped by other malware.

It requires its main component to successfully perform its intended routine.

  TECHNICAL DETAILS

File Size:

12,590 bytes

File Type:

JS

Initial Samples Received Date:

05 Oct 2012

Arrival Details

This Trojan may be dropped by the following malware:

  • BKDR_URSNIF.SM

Other Details

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

NOTES:

It contains the HTML codes to be injected on monitored sites.

  SOLUTION

Minimum Scan Engine:

9.200

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 JS_URSNIF.DJ

Step 3

Scan your computer with your Trend Micro product to delete files detected as JS_URSNIF.DJ. 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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