WORM_GOLROTED.ABAHW

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 steals sensitive information such as user names and passwords related to certain games.

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 and executes them:

• %Application Data%\Windows Update.exe

(Note: %Application Data% is the Application Data folder, where it usually is C:\Documents and Settings\{user name}\Application Data on Windows 2000, Windows Server 2003, and Windows XP (32- and 64-bit); C:\Users\{user name}\AppData\Roaming on Windows Vista (32- and 64-bit), Windows 7 (32- and 64-bit), Windows 8 (32- and 64-bit), Windows 8.1 (32- and 64-bit), Windows Server 2008, and Windows Server 2012.)

It drops the following files:

• %Application Data%\pid.txt - Process ID of malware
• %Application Data%\pidloc.txt - Full path of dropped copy where it is executed
• %User Temp%\Sysinfo.txt - Full path of intial malware copy where it is executed
• %User Temp%\screens\screenshot{1,2,3...}.jpeg

(Note: %Application Data% is the Application Data folder, where it usually is C:\Documents and Settings\{user name}\Application Data on Windows 2000, Windows Server 2003, and Windows XP (32- and 64-bit); C:\Users\{user name}\AppData\Roaming on Windows Vista (32- and 64-bit), Windows 7 (32- and 64-bit), Windows 8 (32- and 64-bit), Windows 8.1 (32- and 64-bit), Windows Server 2008, and Windows Server 2012.. %User Temp% is the user's temporary folder, where it usually is C:\Documents and Settings\{user name}\Local Settings\Temp on Windows 2000, Windows Server 2003, and Windows XP (32- and 64-bit); C:\Users\{user name}\AppData\Local\Temp on Windows Vista (32- and 64-bit), Windows 7 (32- and 64-bit), Windows 8 (32- and 64-bit), Windows 8.1 (32- and 64-bit), Windows Server 2008, and Windows Server 2012.)

Other System Modifications

This Worm modifies the following registry entries:

HKEY_CURRENT_USER\Software\Microsoft\
Windows\CurrentVersion\Explorer\
Advanced
Hidden = "1"

(Note: The default value data of the said registry entry is "0".)

Propagation

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

• {Removable Drive}:\Sys.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]
open=Sys.exe
action=Run win32

Information Theft

This Worm steals sensitive information such as user names and passwords related to the following games:

• Steam
• Minecraft

It gathers the following data:

• CPU Name
• Server name
• Keylogs
• Clipboard logs
• Timelogs
• Local Date and Time
• Installed language
• Operating System
• Internal IP
• External IP
• Installed Anti-Virus
• Installed Firewall
• Screenshots

It attempts to steal stored email credentials from the following:

• Internet Account Manager
• Microsoft Outlook
• Windows Mail
• Windows Live Mail
• IncrediMail
• Eudora
• Netscape Messenger
• MSN Messenger
• Mozilla Thunderbird
• Group Mail
• Yahoo! Mail
• Gmail
• Google Desktop
• Google Talk

It attempts to get stored information such as user names, passwords, and hostnames from the following browsers:

• Internet Explorer
• Firefox
• Google Chrome
• Chrome SxS
• Netscape
• Opera
• Safari
• Sea Monkey

Stolen Information

This Worm sends the data it gathers to the following email addresses via SMTP:

• {BLOCKED}ey.isaac@yandex.com

Other Details

This Worm connects to the following URL(s) to get the affected system's IP address:

• http://whatismyipaddress.com

It does the following:

• This worm hides the files dropped in removable drives.
• It disables the following processes:
  
  • regedit.exe
  • cmd.exe
  • msconfig.exe
  • taskmgr.exe