TrojanSpy.Win32.GRATEFULPOS.A
Trojan:Win32/Tiggre!rfn (Microsoft) ; A Variant Of Win32/Agent.AACY (ESET-Nod32)
Windows
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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.
It steals certain information from the system and/or the user.
It does not send out the information it steals.
It requires being executed with a specific argument/parameter, an additional component, or in a specific environment in order to proceed with its intended routine.
TECHNICAL DETAILS
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 adds the following mutexes to ensure that only one of its copies runs at any one time:
- Global.Ms.ThreadPooling.MyAppSingleInstance
Information Theft
This Trojan Spy steals the following information:
- IP Address
- Computer Name
- User Name
- OS Architecture
- Credit Card Information
Drop Points
This Trojan Spy does not send out the information it steals.
Other Details
This Trojan Spy does the following:
- It stores the stolen information in an arbitrary file defined during the attack
- It steals credit card information by scraping for credit card information structure in a process memory
- It requires the following commandline/argument in order for the sample to execute:
- rundll32.exe {malware file name}.dll workerInstance {file name to store information}
- It checks if it is currently running with administrative privileges
It requires being executed with a specific argument/parameter, an additional component, or in a specific environment in order to proceed with its intended routine.
SOLUTION
Step 1
Before doing any scans, Windows 7, Windows 8, Windows 8.1, and Windows 10 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 TrojanSpy.Win32.GRATEFULPOS.A
- 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
Scan your computer with your Trend Micro product to delete files detected as TrojanSpy.Win32.GRATEFULPOS.A. 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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