Analysis by: Jed Valderama
 PLATFORM:

Windows 2000, Windows XP, Windows Server 2003

 OVERALL RISK RATING:
 REPORTED INFECTION:
 SYSTEM IMPACT RATING:
 INFORMATION EXPOSURE:

  • Threat Type: Trojan

  • Destructiveness: No

  • Encrypted: Yes

  • In the wild: Yes

  OVERVIEW

Infection Channel: Dropped by other malware

This Trojan may be dropped by other malware.

It drops files into legitimate folders to trick a user into thinking they are part of legitimate applications. It uses a file name similar to a legitimate file to pass as a legitimate file.

It logs a user's keystrokes to steal information.

It creates an event.

  TECHNICAL DETAILS

File Size: 724,480 bytes
File Type: DLL
Memory Resident: Yes
Initial Samples Received Date: 18 Aug 2012

Arrival Details

This Trojan may be dropped by the following malware:

  • TROJ_DROPPER.MNK

Installation

This Trojan adds the following mutexes to ensure that only one of its copies runs at any one time:

  • kazafei
  • Global\Lame

It drops files into legitimate folders to trick a user into thinking they are part of legitimate applications.

It uses a file name similar to a legitimate file to pass as a legitimate file.

Information Theft

This Trojan sends the gathered information to the following site/s using credentials from its configuration file:

  • {BLOCKED}he2004.3322.org

It logs a user's keystrokes to steal information.

Other Details

This Trojan requires the following additional components to properly run:

  • %Program Files%\Common Files\wuauctl.exe - Copy of Rundll32.exe (Dropped by TROJ_DROPPER.MNK)

(Note: %Program Files% is the default Program Files folder, usually C:\Program Files.)

It checks for the presence of the following process(es):

  • 360Tray.exe
  • 360sd.exe
  • zhudongfangyu.exe
  • kxetray.exe
  • ksafetray.exe
  • zatray.exe
  • bdagent.exe

It creates the following event(s):

  • Global\VMM1002

NOTES:

This spyware also does the following to steal information:

  • Capture screenshots
  • Collect system information
  • Impersonate user login

  SOLUTION

Minimum Scan Engine: 9.200
FIRST VSAPI PATTERN FILE: 9.330.09
FIRST VSAPI PATTERN DATE: 18 Aug 2012

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

Scan your computer with your Trend Micro product and note files detected as TSPY_KAZAF.A

Step 3

Remove malware/grayware files that dropped/downloaded TSPY_KAZAF.A

Step 4

Restart in Safe Mode

[ Learn More ]

Step 5

Search and delete the file detected as TSPY_KAZAF.A

*Note: Some component files may be hidden. Please make sure you check the Search Hidden Files and Folders checkbox in the More advanced options option to include all hidden files and folders in the search result.

To manually delete a malware/grayware file from the affected system:

  1. Right-click Start then click Search....
  2. In the Named input box, type the name of the file that was detected earlier.
  3. In the Look In drop-down list, select My Computer then press Enter.
  4. Once located, select the file then press SHIFT+DELETE to delete it.

Step 6

Restart in normal mode and scan your computer with your Trend Micro product for files detected as TSPY_KAZAF.A. 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.

Step 7

Scan your computer with your Trend Micro product to delete files detected as TSPY_KAZAF.A. 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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