PE_EXPIRO.EC
W32/Expiro.e (McAfee); W32.Xpiro.B (Symantec); Virus.Win32.Expiro.r (Kaspersky); Virus.Win32.Expiro.n (v) (Sunbelt); Win32/Expiro.O (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
302,592 bytes
EXE
No
14 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.
Other System Modifications
This file infector deletes the following files:
- %User Profile%\Cookies\index.dat
(Note: %User Profile% is the current user's profile folder, which is usually C:\Documents and Settings\{user name} on Windows 2000, XP, and Server 2003, or C:\Users\{user name} on Windows Vista and 7.)
Dropping Routine
This file infector drops the following files:
- %System%\magnify.ivr
- %System%\narrator.ivr
- %System%\osk.ivr
- %System%\utilman.ivr
- %Program Files%\Outlook Express\wab.ivr
- %System%\cmd.ivr
- %Program Files%\Windows Media Player\wmplayer.ivr
- %System%\notepad.ivr
- %System%\mobsync.ivr
- %System%\tourstart.ivr
- %Program Files%\Internet Explorer\IEXPLORE.ivr
- %Program Files%\Outlook Express\msimn.ivr
- %System%\rcimlby.ivr
- %System%\magnify.exe
- %System%\narrator.exe
- %System%\osk.exe
- %System%\utilman.exe
- %Program Files%\Outlook Express\wab.exe
- %System%\cmd.exe
- %Program Files%\Windows Media Player\wmplayer.exe
- %System%\notepad.exe
- %System%\mobsync.exe
- %System%\tourstart.exe
- %Program Files%\Internet Explorer\IEXPLORE.EXE
- %Program Files%\Outlook Express\msimn.exe
- %System%\rcimlby.exe
(Note: %System% is the Windows system folder, which is usually C:\Windows\System32.. %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%\magnify.ivr
- %System%\narrator.ivr
- %System%\osk.ivr
- %System%\utilman.ivr
- %Program Files%\Outlook Express\wab.ivr
- %System%\cmd.ivr
- %Program Files%\Windows Media Player\wmplayer.ivr
- %System%\notepad.ivr
- %System%\mobsync.ivr
- %System%\tourstart.ivr
- %Program Files%\Internet Explorer\IEXPLORE.ivr
- %Program Files%\Outlook Express\msimn.ivr
- %System%\rcimlby.ivr
- %System%\magnify.exe
- %System%\narrator.exe
- %System%\osk.exe
- %System%\utilman.exe
- %Program Files%\Outlook Express\wab.exe
- %System%\cmd.exe
- %Program Files%\Windows Media Player\wmplayer.exe
- %System%\notepad.exe
- %System%\mobsync.exe
- %System%\tourstart.exe
- %Program Files%\Internet Explorer\IEXPLORE.EXE
- %Program Files%\Outlook Express\msimn.exe
- %System%\rcimlby.exe
Step 3
Scan your computer with your Trend Micro product to clean files detected as PE_EXPIRO.EC. 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 4
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.
- %User Profile%\Cookies\index.dat
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