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.

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.mlwpath: /opt/CAPEv2/storage/binaries/2e7a0053d54870bbfda7c922fc630362a035a081c219b7b49572a3a5175ba137crc32: C2F94122md5: 6e819a370350d424fa576c0131f7d180sha1: 079d212752a720d66ed66078aa025d34546f750dsha256: 2e7a0053d54870bbfda7c922fc630362a035a081c219b7b49572a3a5175ba137sha512: 65bd1759ee38be640552a844abbf4e9abef4e0292b5118c404f9cedf1e51a680f7326625e9432185fd4b3ef6c0bb7aa98cc6c59e02bdb3387b6fbd8b36723d94ssdeep: 24576:xKrPoVXEyn1+04+g8IdlTZi+NHv7mOel7QDBolDD8O9MC+x:GP0Z1N3lCi+NH650BolDD19MCutype: PE32 executable (GUI) Intel 80386, for MS Windowstlsh: T1C54533A3741B482BD1B1E436520EBAD8FDF7F50B8D6839665E0BDC504531AE1E0C3A9Bsha3_384: 3ba8e18221e7e22e66b00f855225ef5f0fb8d5b06a46ec440ad18ffddb46ed74fdbf5fcfe0bac83b4b0e9ccad3d79800ep_bytes: 60be00504e008dbe00c0f1ff5783cdfftimestamp: 2021-03-17 23:46:53
Version Info:
CompanyName: 厦门智业软件公司FileDescription: ChargeFileVersion: 8.0.2.9506InternalName: PB 8LegalCopyright: Copyright (c) 1997 - 2008 ZHIY CorporationProductName: 收费工作站ProductVersion: Version 4.1Translation: 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.