Should I remove “Win32/TrojanDropper.Autoit.VA”?

The Win32/TrojanDropper.Autoit.VA is considered dangerous by lots of security experts. When this infection is active, you may notice unwanted processes in Task Manager list. In this case, it is adviced to scan your computer with GridinSoft Anti-Malware.

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What Win32/TrojanDropper.Autoit.VA virus can do?

• SetUnhandledExceptionFilter detected (possible anti-debug)
• Behavioural detection: Executable code extraction – unpacking
• At least one process apparently crashed during execution
• Attempts to connect to a dead IP:Port (1 unique times)
• Yara rule detections observed from a process memory dump/dropped files/CAPE
• Creates RWX memory
• Anomalous file deletion behavior detected (10+)
• Guard pages use detected – possible anti-debugging.
• A process attempted to delay the analysis task.
• Dynamic (imported) function loading detected
• A named pipe was used for inter-process communication
• Starts servers listening on 127.0.0.1:0
• Enumerates running processes
• Reads data out of its own binary image
• Unconventionial binary language: Chinese (Simplified)
• Unconventionial language used in binary resources: Chinese (Simplified)
• Authenticode signature is invalid
• Uses Windows utilities for basic functionality
• Behavioural detection: Injection (inter-process)
• Created a process from a suspicious location
• A possible heap spray exploit has been detected
• Collects and encrypts information about the computer likely to send to C2 server
• Creates a hidden or system file
• Attempts to modify proxy settings
• Harvests cookies for information gathering
• Anomalous binary characteristics

How to determine Win32/TrojanDropper.Autoit.VA?

File Info:
name: 651232A5829AE5FE8697.mlw
path: /opt/CAPEv2/storage/binaries/2b030ee7723c66bfc6ccd895f46fb36759b54a17d61f55ed9f6f15f760f4cefe
crc32: BCCB68DD
md5: 651232a5829ae5fe86979e93f5cdcb2b
sha1: 39f0e39a339ca1fb16825f0061bef1ebafabe7ca
sha256: 2b030ee7723c66bfc6ccd895f46fb36759b54a17d61f55ed9f6f15f760f4cefe
sha512: 1a9cc3ded51a5145d5435c24331ded4e2b91e286a7c2508c2711dc011f58d38673059cd503b297bffa27eec8273812a67379a56e64f284cd98143a4b596cc1a5
ssdeep: 196608:cVq//DjIHkXrc8PU+kXmp2n5BnaB77+qMpmeCgeiUdf5QCoxSPclOtUX54PxFFFT:cWFbcj2p6zcEpmeIMzxkc7uPPLT
type: PE32 executable (GUI) Intel 80386, for MS Windows
tlsh: T1CED6331277D281BBE8A338B2165BE3A7F735691D53228287A3E03F769E552004F37761
sha3_384: d1a9a9563c1b7b50535196c829c197203c0980101d5ed6aee0e9980ef7b468968887ee0f0e51be73b3086d384ac69336
ep_bytes: e8a7c00000e979feffffcccccccccccc
timestamp: 2010-04-16 07:47:33

Version Info:
FileVersion: 3.3.6.1
Translation: 0x0804 0x04b0

Win32/TrojanDropper.Autoit.VA also known as:

How to remove Win32/TrojanDropper.Autoit.VA?

• Download and install GridinSoft Anti-Malware.
• Open GridinSoft Anti-Malware and perform a “Standard scan“.
• “Move to quarantine” all items.
• Open “Tools” tab – Press “Reset Browser Settings“.
• Select proper browser and options – Click “Reset”.
• Restart your computer.