HTML_SPAMBOT.YQJ

October 04, 2014
 Analysis by: Anthony Joe Melgarejo
 PLATFORM:

Windows, Linux, Unix, Mac OS X

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

  • Threat Type: Trojan

  • Destructiveness: No

  • Encrypted: No

  • In the wild: Yes

  OVERVIEW

Infection Channel:

Downloaded from the Internet, Dropped by other malware

This Trojan arrives as a component bundled with malware/grayware packages. It may be downloaded from remote sites by other malware.

  TECHNICAL DETAILS

File Size:

4273 bytes

File Type:

HTML, HTM

Memory Resident:

No

Initial Samples Received Date:

02 Oct 2014

Payload:

Connects to URLs/IPs

Arrival Details

This Trojan arrives as a component bundled with malware/grayware packages.

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

  • PERL_SHELLBOT.SM

It may be downloaded from the following remote sites:

  • http://{BLOCKED}.{BLOCKED}.64.176/.e/gg.tgz

NOTES:

This HTML file is used by PHP_SPAMBOT.YQJ as the email body used in its spamming routine.

Here is a screenshot of the HTML file when opened:

Once the user clicks the link, the user will be redirected to a phishing site:

  • http://{BLOCKED}.{BLOCKED}.147.54/.san/san.htm

  SOLUTION

Minimum Scan Engine:

9.700

FIRST VSAPI PATTERN FILE:

11.186.05

FIRST VSAPI PATTERN DATE:

02 Oct 2014

VSAPI OPR PATTERN File:

11.187.00

VSAPI OPR PATTERN Date:

03 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

Remove malware/grayware files that dropped/downloaded HTML_SPAMBOT.YQJ. (Note: Please skip this step if the threats listed below have already been removed.)

     
    • PERL_SHELLBOT.SM
    • PHP_SPAMBOT.YQJ

Step 3

Scan your computer with your Trend Micro product to delete files detected as HTML_SPAMBOT.YQJ. 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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