Analysis by: RonJay Kristoffer Caragay
ALIASES:

W32.Shadesrat (Symantec); Worm.Win32.VBNA.b (Kaspersky); Troj/Mdrop-FCN (Sophos); Worm.Win32.Vobfus.mc (v) (Sunbelt); Trojan:W32/VBinject.Y (FSecure); Worm/Generic_vb.KM (AVG)

 PLATFORM:

Windows 2000, Windows Server 2003, Windows XP (32-bit, 64-bit), Windows Vista (32-bit, 64-bit), Windows 7 (32-bit, 64-bit)

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

  • Threat Type: Spyware

  • Destructiveness: No

  • Encrypted:

  • In the wild: Yes

  OVERVIEW

Infection Channel: Downloaded from the Internet, Dropped by other malware

This spyware arrives on a system as a file dropped by other malware or as a file downloaded unknowingly by users when visiting malicious sites. It may be dropped by other malware.

It does not have any propagation routine.

It does not have any backdoor routine.

It does not have any downloading capability.

  TECHNICAL DETAILS

File Size: 266,240 bytes
File Type: EXE
Memory Resident: No
Initial Samples Received Date: 05 Sep 2014
Payload: Connects to URLs/IPs

Arrival Details

This spyware arrives on a system as a file dropped by other malware or as a file downloaded unknowingly by users when visiting malicious sites.

It may be dropped by the following malware:

  • TROJ_MDOT.J

Propagation

This spyware does not have any propagation routine.

Backdoor Routine

This spyware does not have any backdoor routine.

Download Routine

This spyware does not have any downloading capability.

Stolen Information

The stolen information is saved in the following file:

  • User Temp%\{10 random alphanumeric characters}.ini ← deleted afterwards

It sends the gathered information via HTTP POST to the following URL:

  • http://mfc.{BLOCKED}tal.com/fortune/index.php?action=add&username={username}&password={password}&app={application}&pcname={computername}&sitename={url of credentials}

NOTES:

This spyware steals user names and passwords from the following applications:

  • FileZilla
  • Internet Download Manager
  • jDownloader
  • MSN Hotmail
  • Pidgin
  • Trillian
  • VPN/NET Credentials
  • Yahoo! Messenger
  • Registry/website/application defined in %User Temp%\{10 random alphanumeric characters}.ini

It does not have rootkit capabilities.

It does not exploit any vulnerability.

  SOLUTION

Minimum Scan Engine: 9.700
FIRST VSAPI PATTERN FILE: 11.136.05
FIRST VSAPI PATTERN DATE: 08 Sep 2014
VSAPI OPR PATTERN File: 11.137.00
VSAPI OPR PATTERN Date: 08 Sep 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

Note that not all files, folders, and registry keys and entries are installed on your computer during this malware's/spyware's/grayware's execution. This may be due to incomplete installation or other operating system conditions. If you do not find the same files/folders/registry information, please proceed to the next step.

Step 3

Remove the malware/grayware file that dropped/downloaded TSPY_CHISBURG.J. (Note: Please skip this step if the threat(s) listed below have already been removed.)

Step 4

Search and delete this file

[ Learn More ]
There may be some files that are 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.
  • User Temp%\{10 random alphanumeric characters}.ini

Step 5

Scan your computer with your Trend Micro product to delete files detected as TSPY_CHISBURG.J. 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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