PE_PAGIPEF.BX
Trojan:Win32/Startpage.RM (Microsoft); StartPage-FAF!62444D321A1A (McAfee); Trojan.KillAV (Symantec); Worm.Win32.AutoRun.fksc (Kaspersky); Trojan.Win32.Generic.pak!cobra (Sunbelt); Worm/Generic2.AVIL (AVG)
Windows 2000, Windows XP, Windows Server 2003
Threat Type: File infector
Destructiveness: No
Encrypted:
In the wild: Yes
OVERVIEW
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.
TECHNICAL DETAILS
374,816 bytes
EXE
No
24 Jun 2013
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 drops the following copies of itself into the affected system:
- %Program Files%\Common Files\Microsoft Shared\explorer.exe
(Note: %Program Files% is the default Program Files folder, usually C:\Program Files in Windows 2000, Server 2003, and XP (32-bit), Vista (32-bit), and 7 (32-bit), or C:\Program Files (x86) in Windows XP (64-bit), Vista (64-bit), and 7 (64-bit).)
It creates the following folders:
- %System Root%\MFILES
(Note: %System Root% is the root folder, which is usually C:\. It is also where the operating system is located.)
Other System Modifications
This file infector deletes the following files:
- %System Root%\MFILES\winlogon.exe
- %Common Startup%\8970.lnk
(Note: %System Root% is the root folder, which is usually C:\. It is also where the operating system is located.. %Common Startup% is the system's shared Startup folder, which is usually C:\Documents and Settings\All Users\Start Menu\Programs\Startup on Windows 2000, XP, and Server 2003.)
Dropping Routine
This file infector drops the following files:
- %System Root%\fytvef.txt
- %System Root%\yucbcw.jpg
- %System Root%\ktatyu.bmp
- %System Root%\wvknvv.gif
- %System Root%\qohnyl.doc
- %Program Files%\Common Files\uiui8.dll
- %System Root%\1681.dat
- %System Root%\MFILES\winlogon.exe
(Note: %System Root% is the root folder, which is usually C:\. It is also where the operating system is located.. %Program Files% is the default Program Files folder, usually C:\Program Files in Windows 2000, Server 2003, and XP (32-bit), Vista (32-bit), and 7 (32-bit), or C:\Program Files (x86) in Windows XP (64-bit), Vista (64-bit), and 7 (64-bit).)
This report is generated via an automated analysis system.
SOLUTION
9.300
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
Search and delete these components
- %System Root%\fytvef.txt
- %System Root%\yucbcw.jpg
- %System Root%\ktatyu.bmp
- %System Root%\wvknvv.gif
- %System Root%\qohnyl.doc
- %Program Files%\Common Files\uiui8.dll
- %System Root%\1681.dat
- %System Root%\MFILES\winlogon.exe
Step 3
Search and delete this folder
- %System Root%\MFILES
Step 4
Scan your computer with your Trend Micro product to clean files detected as PE_PAGIPEF.BX. 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.
Step 5
Restore this file from backup only Microsoft-related files will be restored. If this malware/grayware also deleted files related to programs that are not from Microsoft, please reinstall those programs on you computer again.
- %System Root%\MFILES\winlogon.exe
- %Common Startup%\8970.lnk
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