TrojanSpy.Win32.DRIDEX.TIBZ
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.
It scans the computer for registry keys related to antivirus and security applications. This action allows the malware to possibly avoid detection in the computer.
It connects to certain websites to send and receive information. However, as of this writing, the said sites are inaccessible. It deletes the initially executed copy of itself.
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 processes:
- %System%\raserver.exe "{malware path and filename}"
(Note: %System% is the Windows system folder, where it usually is C:\Windows\System32 on all Windows operating system versions.)
It injects codes into the following process(es):
- %System%\raserver.exe
(Note: %System% is the Windows system folder, where it usually is C:\Windows\System32 on all Windows operating system versions.)
Other System Modifications
This Trojan Spy scans the system for the following registry keys, which are related to antivirus and security applications:
HKEY_LOCAL_MACHINE\Software\TrendMicro\
Vizor
Information Theft
This Trojan Spy gathers the following data:
- Running Processes
- Computer Username
- Related System Information:
- Build GUID
- Build Lab
- Build Lab Ex
- CSD Build Number
- CSD Version
- Current Build Number
- Current Type
- Current Version
- Digital Product ID
- Edition ID
- Install Date
- Installation Type
- OS Version
- Path Name
- Product ID
- Product Name
- Registered Organization
- Registered Owner
- Software Type
- System Root
- Installed Applications
- Process Memory Information
Other Details
This Trojan Spy connects to the following website to send and receive information:
- 5.{BLOCKED}.{BLOCKED}.119
- 54.{BLOCKED}.{BLOCKED}.115
- 46.{BLOCKED}.{BLOCKED}.40
However, as of this writing, the said sites are inaccessible.
It deletes the initially executed copy of itself
SOLUTION
Step 1
Trend Micro Predictive Machine Learning detects and blocks malware at the first sign of its existence, before it executes on your system. When enabled, your Trend Micro product detects this malware under the following machine learning name:
-
Troj.Win32.TRX.XXPE50FFF032
Step 2
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 3
Identify and terminate files detected as TrojanSpy.Win32.DRIDEX.TIBZ
- 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.DRIDEX.TIBZ. 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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