TSPY_CHISBURG.GH
Mal/MalitRar-E (Sophos); Trojan.Win32.Generic!BT (Sunbelt)
Windows 2000, Windows Server 2003, Windows XP (32-bit, 64-bit), Windows Vista (32-bit, 64-bit), Windows 7 (32-bit, 64-bit)
Threat Type: Spyware
Destructiveness: No
Encrypted:
In the wild: Yes
OVERVIEW
This spyware 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
1,343,124 bytes
EXE
No
30 Aug 2014
Arrival Details
This spyware 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 spyware creates the following folders:
- %System Root%\Documents and Settings\Wilbert
- %User Profile%\Application Data\QFO
(Note: %System Root% is the root folder, which is usually C:\. It is also where the operating system is located.. %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.)
Other System Modifications
This spyware deletes the following files:
- %User Temp%\ZcSuqaSQvh.ini
(Note: %User Temp% is the current user's Temp folder, which is usually C:\Documents and Settings\{user name}\Local Settings\Temp on Windows 2000, XP, and Server 2003, or C:\Users\{user name}\AppData\Local\Temp on Windows Vista and 7.)
It adds the following registry keys:
HKEY_CURRENT_USER\Software\WinRAR SFX
It adds the following registry entries:
HKEY_CURRENT_USER\Software\WinRAR SFX
C%%Documents and Settings%Wilbert%Application Data%QFO = "%User Profile%\Application Data\QFO"
Dropping Routine
This spyware drops the following files:
- __tmp_rar_sfx_access_check_45718
- QFO.exe
- usjlx.ajm
- ukids.ima
- sncvj.hip
- dhplr.avf
- hteal.dcu
- bheru.grt
- ivwfo.qed
- wijfp.ofr
- jwcfm.iqo
- triuw.lqb
- fkjno.fuu
- opamq.knc
- onqki.uhm
- jqngl.wno
- tvowv.ixx
- rhnmb.hqs
- jqovu.loj
- ndhcj.jci
- pcgxp.sga
- usmrd.siv
- ucmko.rpp
- QFO
- %User Temp%\CwFAXyKiqV.ini
(Note: %User Temp% is the current user's Temp folder, which is usually C:\Documents and Settings\{user name}\Local Settings\Temp on Windows 2000, XP, and Server 2003, or C:\Users\{user name}\AppData\Local\Temp on Windows Vista and 7.)
Other Details
This spyware connects to the following possibly malicious URL:
- http://{BLOCKED}ma-pvs.com/dhbwelcome/index.php?{random characters}
- {BLOCKED}5.51.91
This report is generated via an automated analysis system.
SOLUTION
9.700
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
Delete this registry key
Important: Editing the Windows Registry incorrectly can lead to irreversible system malfunction. Please do this step only if you know how or you can ask assistance from your system administrator. Else, check this Microsoft article first before modifying your computer's registry.
- In HKEY_CURRENT_USER\Software
- WinRAR SFX
Step 3
Delete this registry value
Important: Editing the Windows Registry incorrectly can lead to irreversible system malfunction. Please do this step only if you know how or you can ask assistance from your system administrator. Else, check this Microsoft article first before modifying your computer's registry.
- In HKEY_CURRENT_USER\Software\WinRAR SFX
- C%%Documents and Settings%Wilbert%Application Data%QFO = "%User Profile%\Application Data\QFO"
Step 4
Search and delete these components
- __tmp_rar_sfx_access_check_45718
- QFO.exe
- usjlx.ajm
- ukids.ima
- sncvj.hip
- dhplr.avf
- hteal.dcu
- bheru.grt
- ivwfo.qed
- wijfp.ofr
- jwcfm.iqo
- triuw.lqb
- fkjno.fuu
- opamq.knc
- onqki.uhm
- jqngl.wno
- tvowv.ixx
- rhnmb.hqs
- jqovu.loj
- ndhcj.jci
- pcgxp.sga
- usmrd.siv
- ucmko.rpp
- QFO
- %User Temp%\CwFAXyKiqV.ini
Step 5
Search and delete these folders
- %System Root%\Documents and Settings\Wilbert
- %User Profile%\Application Data\QFO
Step 6
Scan your computer with your Trend Micro product to delete files detected as TSPY_CHISBURG.GH. 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 7
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 Temp%\ZcSuqaSQvh.ini
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