TSPY_GOLROTED.AAAGL
TrojanSpy:MSIL/Golroted.B (Microsoft),
Windows
Threat Type: Spyware
Destructiveness: No
Encrypted: Yes
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.
It deletes the initially executed copy of itself.
TECHNICAL DETAILS
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 drops the following copies of itself into the affected system and executes them:
- %Application Data%\Windows Update.exe
- %Application Data%\WindowsUpdate.exe
(Note: %Application Data% is the Application Data folder, where it usually is C:\Documents and Settings\{user name}\Application Data on Windows 2000, Windows Server 2003, and Windows XP (32- and 64-bit); C:\Users\{user name}\AppData\Roaming on Windows Vista (32- and 64-bit), Windows 7 (32- and 64-bit), Windows 8 (32- and 64-bit), Windows 8.1 (32- and 64-bit), Windows Server 2008, and Windows Server 2012.)
It drops the following files:
- %Application Data%\pid.txt
- %Application Data%\pidloc.txt
(Note: %Application Data% is the Application Data folder, where it usually is C:\Documents and Settings\{user name}\Application Data on Windows 2000, Windows Server 2003, and Windows XP (32- and 64-bit); C:\Users\{user name}\AppData\Roaming on Windows Vista (32- and 64-bit), Windows 7 (32- and 64-bit), Windows 8 (32- and 64-bit), Windows 8.1 (32- and 64-bit), Windows Server 2008, and Windows Server 2012.)
It adds the following processes:
- Windows Update.exe
Other System Modifications
This spyware adds the following registry entries:
HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\
Windows\CurrentVersion\Run
Windows Update = %Application Data%\Windows Update.exe
It modifies the following registry entries:
HKEY_CURRENT_USER\Software\Microsoft\
Windows\CurrentVersion\Explorer\
Advanced
Hidden = "1"
(Note: The default value data of the said registry entry is "{User Preference}".)
Information Theft
This spyware gathers the following data:
- keyboard logs
- clipboard logs
- Screenshot
- Local Date and Time
- OS Version
- Processor Information
- Default Browser
- .Net version
- Installed AV
- Installed Firewall
- Internal IP Address
- External IP Address
Other Details
This spyware connects to the following URL(s) to get the affected system's IP address:
- http://whatismyipaddress.com
It does the following:
- Attempts to get login credentials such as server, username and password from the following:
- Microsoft FTP
- FileZilla
- FTP Commander
- JDownloder v2.0
- Steam
- Attempts to get stored credential from the following:
- MS Outlook
- Google Desktop
- Windows Mail
- Windows Live Mail
- Incredimail
- Gmail
- Hotmail/MSN
- Yahoo! Mail
- Netscape Mail
Eudora - Attempts to get stored info such as username, password and hostnames from the following browsers:
- Internet Explorer
- Firefox
- Chrome
- Opera
- Safari
- SeaMonkey
- It sends gathered information to the following email address via smtp.yandex.com:
- {blocked}ys22@yandex.com
It deletes the initially executed copy of itself
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
Identify and terminate files detected as TSPY_GOLROTED.AAAGL
- 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
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_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Run
- Windows Update = %Application Data%\Windows Update.exe
- Windows Update = %Application Data%\Windows Update.exe
Step 5
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 = "1"
To: Hidden = "{User Preference}"
- From: Hidden = "1"
Step 6
Search and delete these files
Step 7
Scan your computer with your Trend Micro product to delete files detected as TSPY_GOLROTED.AAAGL. 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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