PE_EXPIRO.JX

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

It infects files by overwriting code in the entry point and saving the overwritten code in the virus body. It then appends the virus body to the host file.

It steals certain information from the system and/or the user.

Arrival Details

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

• kkq-{random number}-mtx{random-number}

File Infection

This file infector overwrites code found in the entry point of a target file. It then appends the virus body to the target file. The overwritten code is saved in the virus body.

It searches for target files in the following folders:

• Current Directory
• %Start Menu%
• All available drive

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

This is the Trend Micro detection for files infected by:

• PE_EXPIRO.JX

Information Theft

This file infector steals the following information:

• Windows Product ID
• Drive Volume Serial Number
• OS Version
• User credentials
• FileZilla Information

Stolen Information

The stolen information is saved in the following file:

• %Application Data%\{random filename}.dll

(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 and 7.)

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

• {BLOCKED}romarenda.ru
• {BLOCKED}on-oriental.ru
• {BLOCKED}na-rukave.org
• {BLOCKED}izneonet.biz
• {BLOCKED}etails555.biz
• {BLOCKED}-govsvc.ru
• {BLOCKED}ydyg.ru
• {BLOCKED}ugin.com
• {BLOCKED}ikav.com
• {BLOCKED}aquh.ru
• {BLOCKED}etop.com
• {BLOCKED}outhoffshore.com
• {BLOCKED}latker.ru
• {BLOCKED}job.ru
• {BLOCKED}gunszavod.ru
• {BLOCKED}vostok.ws
• {BLOCKED}op-ultras.org
• {BLOCKED}kygay-formula.in
• {BLOCKED}xxlub.ru
• {BLOCKED}adshop.ru
• {BLOCKED}rtal-2016.ru
• {BLOCKED}rc-usb33bit.com
• {BLOCKED}ers50.ru
• {BLOCKED}ka-ww2.ru
• {BLOCKED}-beavis.ru
• {BLOCKED}-from-iran.net
• {BLOCKED}ur.ru
• {BLOCKED}llusionist.com
• {BLOCKED}llusionist.net
• www.{BLOCKED}vrc-usb33bit.com

NOTES:
Malware also infects all services.