Win32/WinShell.AA removal instruction

The Win32/WinShell.AA 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/WinShell.AA virus can do?

• Behavioural detection: Executable code extraction – unpacking
• SetUnhandledExceptionFilter detected (possible anti-debug)
• Yara rule detections observed from a process memory dump/dropped files/CAPE
• Guard pages use detected – possible anti-debugging.
• Dynamic (imported) function loading detected
• Enumerates running processes
• Drops a binary and executes it
• Unconventionial language used in binary resources: Chinese (Simplified)
• The binary contains an unknown PE section name indicative of packing
• The binary likely contains encrypted or compressed data.
• The executable is compressed using UPX
• Authenticode signature is invalid
• Uses Windows utilities for basic functionality
• Installs itself for autorun at Windows startup
• Checks for the presence of known devices from debuggers and forensic tools
• Checks for the presence of known devices from debuggers and forensic tools
• Harvests cookies for information gathering
• Uses suspicious command line tools or Windows utilities

How to determine Win32/WinShell.AA?

File Info:
name: 6E819A370350D424FA57.mlw
path: /opt/CAPEv2/storage/binaries/2e7a0053d54870bbfda7c922fc630362a035a081c219b7b49572a3a5175ba137
crc32: C2F94122
md5: 6e819a370350d424fa576c0131f7d180
sha1: 079d212752a720d66ed66078aa025d34546f750d
sha256: 2e7a0053d54870bbfda7c922fc630362a035a081c219b7b49572a3a5175ba137
sha512: 65bd1759ee38be640552a844abbf4e9abef4e0292b5118c404f9cedf1e51a680f7326625e9432185fd4b3ef6c0bb7aa98cc6c59e02bdb3387b6fbd8b36723d94
ssdeep: 24576:xKrPoVXEyn1+04+g8IdlTZi+NHv7mOel7QDBolDD8O9MC+x:GP0Z1N3lCi+NH650BolDD19MCu
type: PE32 executable (GUI) Intel 80386, for MS Windows
tlsh: T1C54533A3741B482BD1B1E436520EBAD8FDF7F50B8D6839665E0BDC504531AE1E0C3A9B
sha3_384: 3ba8e18221e7e22e66b00f855225ef5f0fb8d5b06a46ec440ad18ffddb46ed74fdbf5fcfe0bac83b4b0e9ccad3d79800
ep_bytes: 60be00504e008dbe00c0f1ff5783cdff
timestamp: 2021-03-17 23:46:53

Version Info:
CompanyName: 厦门智业软件公司
FileDescription: Charge
FileVersion: 8.0.2.9506
InternalName: PB 8
LegalCopyright: Copyright (c) 1997 - 2008 ZHIY Corporation
ProductName: 收费工作站
ProductVersion: Version 4.1
Translation: 0x0409 0x1252

Win32/WinShell.AA also known as:

How to remove Win32/WinShell.AA?

• 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.