TROJAN.WIN32.DROPPR.MA

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

Arrival Details

This Trojan 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 Trojan drops the following files:

• %Application Data%\Adobe\Acrobat\10.0\__tmp_rar_sfx_access_check_26533341

(Note: %Application Data% is the current user's Application Data folder, which is usually C:\Documents and Settings\{user name}\Application Data on Windows 2000, XP, and Server 2003, or C:\Users\{user name}\AppData\Roaming on Windows Vista, 7, and 8.)

It drops and executes the following files:

• %Application Data%\Adobe\Acrobat\10.0\igfxext.exe
• %Application Data%\Adobe\Acrobat\10.0\AxDecrypt.exe

(Note: %Application Data% is the current user's Application Data folder, which is usually C:\Documents and Settings\{user name}\Application Data on Windows 2000, XP, and Server 2003, or C:\Users\{user name}\AppData\Roaming on Windows Vista, 7, and 8.)

It creates the following folders:

• %Application Data%\Adobe\Acrobat\10.0

(Note: %Application Data% is the current user's Application Data folder, which is usually C:\Documents and Settings\{user name}\Application Data on Windows 2000, XP, and Server 2003, or C:\Users\{user name}\AppData\Roaming on Windows Vista, 7, and 8.)

Other System Modifications

This Trojan modifies the following registry entries:

HKEY_CURRENT_USER\Software\WinRAR SFX
%System%%%Users%{Username}%AppData%Roaming%Adobe%Acrobat%10.0% = "%Application Data%\Adobe\Acrobat\10.0\"