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JS_SPAMVIR.SMDA

October 09, 2012
 Analysis by: Roland Marco Dela Paz
 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

Infection Channel:

Dropped by other malware, Downloaded from the Internet


This malware is a JavaScript component of a Facebook Clickjacking campaign.

It posts a news share on the affected user's Facebook profile about a fake scandal of a Hollywood actress. The post may contain any of the following text which this malware chooses randomly:

  • "OMG look this video"

  • "Hey look at this"

  • "Have you seen this"

  • "OMG check this out"

This Trojan may be downloaded from remote sites by other malware.

  TECHNICAL DETAILS

File Size:

Varies

File Type:

JS

Memory Resident:

No

Initial Samples Received Date:

30 Apr 2012

Payload:

Connects to URLs/IPs

Arrival Details

This Trojan may be downloaded from remote site(s) by the following malware:

  • JS_SPAMVIR.SMD

It may be downloaded from the following remote sites:

  • http://{BLOCKED}cripts.it/divx2/function.js
  • http://{BLOCKED}cripts.it/divx2/page.js

NOTES:

This malware is a JavaScript component of a Facebook Clickjacking campaign.

It posts a news share on the affected user's Facebook profile about a fake scandal of a Hollywood actress. The post may contain any of the following text which this malware chooses randomly:

  • "OMG look this video"
  • "Hey look at this"
  • "Have you seen this"
  • "OMG check this out"

The news share may then point to any of the following sites, which are also randomly chosen by the malware:

  • http://{BLOCKED}ver.blogspot.it/
  • http://{BLOCKED}ver.blogspot.fr/
  • chttp://{BLOCKED}ever.blogspot.jp/
  • http://{BLOCKED}vver.blogspot.ca/
  • http://{BLOCKED}vver.blogspot.in/
  • http://{BLOCKED}vver.blogspot.co.nz/
  • http://{BLOCKED}vver.blogspot.com.es/
  • http://{BLOCKED}vver.blogspot.com/
  • http://{BLOCKED}vver.blogspot.co.uk/
  • http://{BLOCKED}vver.blogspot.de/
  • http://{BLOCKED}vver.blogspot.com.ar/

It makes the affected user inadvertently like the following fan page:

  • http://www.facebook.com/{BLOCKED}wwhatfy?/7416876132874

This malicious script may also lead the user to the following URL:

  • http://{BLOCKED}helife.info/divx2/watch.php?extra - leads to a fake video streaming site

  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/grayware files that dropped/downloaded JS_SPAMVIR.SMDA

Step 3

Close all opened browser windows

Step 4

Scan your computer with your Trend Micro product to delete files detected as JS_SPAMVIR.SMDA. 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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