Trojan.Win32.CRYPTINJECT.EN
Trojan.Win32.CryptInject (IKARUS)
Windows
Threat Type: Trojan
Destructiveness: No
Encrypted:
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.
It connects to a website to send and receive information.
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 creates the following folders:
- %Program Data%\pentera_temp → stores downloaded shell code
Backdoor Routine
This Trojan connects to the following websites to send and receive information:
- {IP address} → parameter used
Information Theft
This Trojan gathers the following data:
- Username
- Hostname
Other Details
This Trojan does the following:
- It looks for the file \?\C:\Users\All Users\pentera_temp\data.bin through the provided IP address in the parameter.
- It receives an encrypted shell code from a remote server through the provided IP address used as a parameter.
- It then injects the shell code it gets to a specified process ID.
It accepts the following parameters:
- {IP address}
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
Search and delete these folders
- %Program Data%\pentera_temp
Step 4
Scan your computer with your Trend Micro product to delete files detected as Trojan.Win32.CRYPTINJECT.EN. 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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