TSPY_GOLROTED.CBQ
TrojanSpy:MSIL/Golroted.E (Microsoft), Trojan.MSIL.Agent.adivv (Kaspersky)
Windows
Threat Type: Trojan Spy
Destructiveness: No
Encrypted:
In the wild: Yes
OVERVIEW
This Trojan Spy arrives on a system as a file dropped by other malware or as a file downloaded unknowingly by users when visiting malicious sites.
However, as of this writing, the said sites are inaccessible.
TECHNICAL DETAILS
816128 bytes
EXE
No
01 Aug 2018
Arrival Details
This Trojan Spy 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 Trojan Spy drops the following files:
- %Application Data%\pidloc.txt
- %Application Data%\pid.txt
- %User Temp%\holdermail.txt
- %User Temp%\holderwb.txt
- %User Temp%/SysInfo.txt
(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, 7, and 8.. %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, 7, and 8.)
It drops the following copies of itself into the affected system:
- %Application Data%\Windows Update.exe
(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, 7, and 8.)
Other System Modifications
This Trojan Spy modifies the following registry entries to hide files with Hidden attributes:
HKCU\Software\Microsoft\
Windows\CurrentVersion\Explorer\
Advanced
Hidden = "1"
Other Details
This Trojan Spy connects to the following URL(s) to get the affected system's IP address:
- http://whatismyipaddress.com/
It connects to the following possibly malicious URL:
- http://{BLOCKED}tory.certum.pl/ca.cer
- http://www.download.{BLOCKED}supdate.com/msdownload/update/v3/static/trustedr/en/authrootstl.cab
However, as of this writing, the said sites are inaccessible.
SOLUTION
9.850
14.186.04
12 Apr 2018
14.187.00
13 Apr 2018
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
Identify and terminate files detected as TSPY_GOLROTED.CBQ
- Windows Task Manager may not display all running processes. In this case, please use a third-party process viewer, preferably Process Explorer, to terminate the malware/grayware/spyware file. You may download the said tool here.
- If the detected file is displayed in either Windows Task Manager or Process Explorer but you cannot delete it, restart your computer in safe mode. To do this, refer to this link for the complete steps.
- If the detected file is not displayed in either Windows Task Manager or Process Explorer, continue doing the next steps.
Step 4
Restore this modified 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\Microsoft\Windows\CurrentVersion\Explorer\Advanced
- From: Hidden data = "1"
To: Hidden data = "0"
- From: Hidden data = "1"
Step 5
Search and delete this file
- %Application Data%\pidloc.txt
- %Application Data%\pid.txt
- %User Temp%\holdermail.txt
- %User Temp%\holderwb.txt
- %User Temp%\SysInfo.txt
- %Application Data%\Windows Update.exe
Step 6
Scan your computer with your Trend Micro product to delete files detected as TSPY_GOLROTED.CBQ. 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 the following Trend Micro Support pages for more information:
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