WORM_SPYEYES.BIJ

 Analysis by: Christopher Daniel So

 ALIASES:

Trojan:Win32/EyeStye.N (Microsoft), Flyagent (McAfee), Trojan-Spy.Win32.SpyEyes.ikd (Kaspersky), Troj/SpyEye-DY (Sophos), Trojan-Spy.Win32.SpyEyes.fyx (v) (Sunbelt)

 PLATFORM:

Windows 2000, Windows XP, Windows Server 2003

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

  • Threat Type: Worm

  • Destructiveness: No

  • Encrypted: Yes

  • In the wild: Yes

  OVERVIEW

Infection Channel:

Dropped by other malware, Downloaded from the Internet, Spammed via email, Propagates via removable drives

This worm arrives by connecting affected removable drives to a system. It arrives on a system as a file dropped by other malware or as a file downloaded unknowingly by users when visiting malicious sites.

It drops an AUTORUN.INF file to automatically execute the copies it drops when a user accesses the drives of an affected system.

It also has rootkit capabilities, which enables it to hide its processes and files from the user.

It modifies the Internet Explorer Zone Settings.

It deletes the initially executed copy of itself.

  TECHNICAL DETAILS

File Size:

394,240 bytes

File Type:

EXE

Memory Resident:

Yes

Initial Samples Received Date:

19 Jun 2012

Payload:

Steals information, Hides files

Arrival Details

This worm arrives by connecting affected removable drives to a system.

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

Installation

This worm drops the following copies of itself into the affected system:

  • %System Root%\win32\7D3B99B55BC.exe

(Note: %System Root% is the root folder, which is usually C:\. It is also where the operating system is located.)

It drops the following files:

  • %System Root%\win32\14214CFE7056B0C - encrypted configuration file

(Note: %System Root% is the root folder, which is usually C:\. It is also where the operating system is located.)

It creates the following folders:

  • %System Root%\win32

(Note: %System Root% is the root folder, which is usually C:\. It is also where the operating system is located.)

Autostart Technique

This worm adds the following registry entries to enable its automatic execution at every system startup:

HKEY_CURRENT_USER\Software\Microsoft\
Windows\CurrentVersion\Run
7X3V9JVFXE8VYEZDDDKKLAQSXDZJ = "%System Root%\win32\7D3B99B55BC.exe /q"

Other System Modifications

This worm adds the following registry keys:

HKEY_CURRENT_USER\Software\Microsoft Windows

Propagation

This worm creates the following folders in all removable drives:

  • {removable drive letter}:\RECYCLER

It drops the following copy(ies) of itself in all removable drives:

  • {removable drive letter}:\RECYCLER\csrss.exe

It drops an AUTORUN.INF file to automatically execute the copies it drops when a user accesses the drives of an affected system.

The said .INF file contains the following strings:

[autorun]
shellexecute=RECYCLER\csrss.exe
action=Open folder to view files
useautoplay=1
icon=shell32.dll,7
shell\explore\command=RECYCLER\csrss.exe
shell\open\command=RECYCLER\csrss.exe

Rootkit Capabilities

This worm also has rootkit capabilities, which enables it to hide its processes and files from the user.

Web Browser Home Page and Search Page Modification

This worm modifies the Internet Explorer Zone Settings.

Stolen Information

This worm sends the gathered information via HTTP POST to the following URL:

  • http://www.{BLOCKED}x.ru/stats/a.php

Other Details

This worm deletes the initially executed copy of itself

NOTES:

It injects itself to all processes except the following:

  • System
  • smss.exe
  • csrss.exe
  • services.exe
  • 7D3B99B55BC.exe

It communicates to the following command and control (C&C)server:

  • http://{BLOCKED}w.valuecommerce.su/jump.php

It posts the following message in MSN Messenger, Skype, and Windows Live Messenger:

check this out,a new facebook feature http://facebook-{BLOCKED}e.com/forum.php?tp=ed402b19f555ec1d {random number}

It steals login information from the following sites:

  • Facebook
  • Google
  • Liberty Reserve
  • PayPal
  • Yahoo!

It captures entered information in web forms related to banking institutions.

  SOLUTION

Minimum Scan Engine:

9.300

FIRST VSAPI PATTERN FILE:

9.204.01

FIRST VSAPI PATTERN DATE:

19 Jun 2012

VSAPI OPR PATTERN File:

9.205.00

VSAPI OPR PATTERN Date:

20 Jun 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

Restart in Safe Mode

[ Learn More ]

Step 3

Delete this registry value

[ Learn More ]

Important: Editing the Windows Registry incorrectly can lead to irreversible system malfunction. Please do this step only if you know how or you can ask assistance from your system administrator. Else, check this Microsoft article first before modifying your computer's registry.

  • In HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Run
    • 7X3V9JVFXE8VYEZDDDKKLAQSXDZJ = "%System Root%\win32\7D3B99B55BC.exe /q"

Step 4

Delete this registry key

[ Learn More ]

Important: Editing the Windows Registry incorrectly can lead to irreversible system malfunction. Please do this step only if you know how or you can ask assistance from your system administrator. Else, check this Microsoft article first before modifying your computer's registry.

  • In HKEY_CURRENT_USER\Software
    • Microsoft Windows

Step 5

Search and delete these folders

[ Learn More ]
Please make sure you check the Search Hidden Files and Folders checkbox in the More advanced options option to include all hidden folders in the search result.
  • %System Root%\win32
  • {removable drive letter}:\RECYCLER

Step 6

Search and delete AUTORUN.INF files created by WORM_SPYEYES.BIJ that contain these strings

[ Learn More ]
[autorun]
shellexecute=RECYCLER\csrss.exe
action=Open folder to view files
useautoplay=1
icon=shell32.dll,7
shell\explore\command=RECYCLER\csrss.exe
shell\open\command=RECYCLER\csrss.exe

Step 7

Reset Internet security settings

[ Learn More ]

Step 8

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