TrojanSpy.Win32.URSNIF.THDAEBO
Trojan:Win32/Gozi.MR!MTB (MICROSOFT); HEUR:Trojan-Banker.Win32.Gozi.pef (KASPERSKY)
Windows
Threat Type: Trojan Spy
Destructiveness: No
Encrypted: Yes
In the wild: Yes
OVERVIEW
Downloaded from the Internet, Dropped by other malware
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.
TECHNICAL DETAILS
722,169 bytes
EXE
No
15 Apr 2020
Connects to URLs/IPs, Steals information
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:
- %Windows%\sysWOW64\wbem\wmiprvse.exe -secured -Embedding
- "%System Root%\Program Files\Internet Explorer\iexplore.exe" -Embedding
(Note: %Windows% is the Windows folder, where it usually is C:\Windows on all Windows operating system versions.. %System Root% is the Windows root folder, where it usually is C:\ on all Windows operating system versions.)
It adds the following mutexes to ensure that only one of its copies runs at any one time:
- Local\{GUID}
Other System Modifications
This Trojan Spy adds the following registry entries:
HKEY_USERS\{User SID}\Software\
Microsoft\Internet Explorer\Main
IE10RunOnceLastShown = 1
HKEY_USERS\{User SID}\Software\
Microsoft\Internet Explorer\Main
IE10RunOnceLastShown_TIMESTAMP = {binary data}
HKEY_USERS\{User SID}\Software\
Microsoft\Internet Explorer\Main
IE8RunOnceLastShown = 1
HKEY_USERS\{User SID}\Software\
Microsoft\Internet Explorer\Main
IE8RunOnceLastShown_TIMESTAMP = {binary data}
HKEY_USERS\{User SID}\Software\
Microsoft\Internet Explorer\Main
Check_Associations = "no"
Information Theft
This Trojan Spy gathers the following data:
- OS Type
- OS Version
- User Name
- Computer Name
- System Uptime
- Machine GUID
Stolen Information
This Trojan Spy sends the gathered information via HTTP POST to the following URL:
- https://{BLOCKED}cos.xyz/index.htm
SOLUTION
9.850
15.807.00
15 Apr 2020
15.807.00
15 Apr 2020
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.XXPE50FFF034
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
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 4
Restart in Safe Mode
Step 5
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_USERS\{User SID}\Software\Microsoft\Internet Explorer\Main
- Check_Associations = "no"
- Check_Associations = "no"
Step 6
Restart in normal mode and scan your computer with your Trend Micro product for files detected as TrojanSpy.Win32.URSNIF.THDAEBO. 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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