PE_EXPIRO.RAQ
Virus:Win32/Expiro.DL (Microsoft); W32.Xpiro.F(Symantec); W32/Expiro.NT!tr(Fortinet); Virus.Win32.Expiro.nt(Kaspersky)
Windows
Threat Type: File infector
Destructiveness: No
Encrypted:
In the wild: Yes
OVERVIEW
This file infector appends its codes to target files. It infects certain file types by inserting code in the said files.
It modifies the Internet Explorer Zone Settings.
TECHNICAL DETAILS
Arrival Details
This malware arrives via the following means:
- may arrive in the system when infected files are executed
- may be downloaded unknowingly when visiting malicious websites
Installation
This file infector adds the following mutexes to ensure that only one of its copies runs at any one time:
- kkq-vx_mtx1
- kkq-vx_mtx35
- gazavat-svc
File Infection
This file infector appends its codes to target files.
It infects files with the following file extensions by inserting code in the said files:
- .EXE
Web Browser Home Page and Search Page Modification
This file infector modifies the Internet Explorer Zone Settings.
SOLUTION
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
Note that not all files, folders, and registry keys and entries are installed on your computer during this malware's/spyware's/grayware's execution. This may be due to incomplete installation or other operating system conditions. If you do not find the same files/folders/registry information, please proceed to the next step.
Step 3
Scan your computer with your Trend Micro product to clean files detected as PE_EXPIRO.RAQ. 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.
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