Trojan.Win32.SHELLOAD.E
Windows
Threat Type: Trojan
Destructiveness: No
Encrypted: No
In the wild: Yes
OVERVIEW
This Trojan 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
Arrival Details
This Trojan 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 adds the following folders:
- %AppDataLocal%\Google\Chrome\update
(Note: %AppDataLocal% is the Local Application Data folder, which is usually C:\Documents and Settings\{user name}\Local Settings\Application Data on Windows 2000(32-bit), XP, and Server 2003(32-bit), or C:\Users\{user name}\AppData\Local on Windows Vista, 7, 8, 8.1, 2008(64-bit), 2012(64-bit) and 10(64-bit).)
It drops the following copies of itself into the affected system:
- %AppDataLocal%\Google\Chrome\update\goopdate.dll
(Note: %AppDataLocal% is the Local Application Data folder, which is usually C:\Documents and Settings\{user name}\Local Settings\Application Data on Windows 2000(32-bit), XP, and Server 2003(32-bit), or C:\Users\{user name}\AppData\Local on Windows Vista, 7, 8, 8.1, 2008(64-bit), 2012(64-bit) and 10(64-bit).)
It drops the following files:
- %AppDataLocal%\Google\Chrome\update\GoogleUpdate.exe → legitimate chrome update
- %AppDataLocal%\Google\Chrome\update\desktop.ini
(Note: %AppDataLocal% is the Local Application Data folder, which is usually C:\Documents and Settings\{user name}\Local Settings\Application Data on Windows 2000(32-bit), XP, and Server 2003(32-bit), or C:\Users\{user name}\AppData\Local on Windows Vista, 7, 8, 8.1, 2008(64-bit), 2012(64-bit) and 10(64-bit).)
Download Routine
This Trojan connects to the following URL(s) to download its component file(s):
- https://l{BLOCKED}piritismireland.com:8443/jquery-3.3.1.min.js
Information Theft
This Trojan gathers the following data:
- Username
Other Details
This Trojan does the following:
- It is being sideloaded by a legitimate google chrome update.
- It looks for the following files in order to proceed with its intended routine:
- {malware filepath}\GoogleUpdate.exe
- {malware filepath}\desktop.ini
It checks if its file name contains any of the following string(s):
- goopdate.dll
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:
- TSPY.Win32.TRX.XXPE50FFF089
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
Search and delete this folder
- %AppDataLocal%\Google\Chrome\update
Step 5
Search and delete this file
- %AppDataLocal%\Google\Chrome\update\GoogleUpdate.exe
- %AppDataLocal%\Google\Chrome\update\desktop.ini
- %AppDataLocal%\Google\Chrome\update\goopdate.dll
Step 6
Scan your computer with your Trend Micro product to delete files detected as Trojan.Win32.SHELLOAD.E. 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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