About “Trojan.Win32.Witch.hcb” infection

The Trojan.Win32.Witch.hcb 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 Trojan.Win32.Witch.hcb virus can do?

• SetUnhandledExceptionFilter detected (possible anti-debug)
• Behavioural detection: Executable code extraction – unpacking
• Executed a command line with /C or /R argument to terminate command shell on completion which can be used to hide execution
• Yara rule detections observed from a process memory dump/dropped files/CAPE
• Creates RWX memory
• Guard pages use detected – possible anti-debugging.
• Dynamic (imported) function loading detected
• Reads data out of its own binary image
• A process created a hidden window
• CAPE extracted potentially suspicious content
• Executed a very long command line or script command which may be indicative of chained commands or obfuscation
• Drops a binary and executes it
• The binary contains an unknown PE section name indicative of packing
• Authenticode signature is invalid
• A scripting utility was executed
• Uses Windows utilities for basic functionality
• Uses Windows utilities for basic functionality
• Detects VirtualBox using WNetGetProviderName trick
• Installs itself for autorun at Windows startup
• Checks the version of Bios, possibly for anti-virtualization
• Appears to use command line obfuscation
• A script or command line contains a long continuous string indicative of obfuscation
• Attempts to disable Windows Defender
• Attempts to execute suspicious powershell command arguments
• Uses suspicious command line tools or Windows utilities

How to determine Trojan.Win32.Witch.hcb?

File Info:
name: A7E31EB1A014ED2EF445.mlw
path: /opt/CAPEv2/storage/binaries/2bd516a5a2001e8004a63e445d6ece4dc1dfa80b39f6c28d4e1778a8173c8860
crc32: 3FDEC89A
md5: a7e31eb1a014ed2ef4456489f0dbfc44
sha1: a99e64d0ad5eab00b1f051912f471b71949cf681
sha256: 2bd516a5a2001e8004a63e445d6ece4dc1dfa80b39f6c28d4e1778a8173c8860
sha512: 297d1917a0579de6bcfed5e1d5b51998a048995e081faa26095a87e76ee3a48fd8426343138213a967d2dedbffc3a13accaea3606cf00dcbe00293aa58615a94
ssdeep: 196608:91OMGv6GyLpgwsnY+5f4Bd/5mqXEV+mANdkPwH7dXmyZU:3OMGCGrwshqUVzB2hXTZU
type: PE32 executable (GUI) Intel 80386, for MS Windows
tlsh: T19D76333434DCE9FBEAE51132D9A07BAA7DD6A7248C3388F752EC464C2EFD5240893165
sha3_384: 438cf7c7c24d2f4b4d81f2acfbe73f4d474ddc124c556dff17c08ea4cb57fe852cd12b80032bc5c6dde5ed01a48e4989
ep_bytes: 558bec6aff68e0b94100682c4a410064
timestamp: 2010-11-18 16:27:35

Version Info:
CompanyName: Igor Pavlov
FileDescription: 7z Setup SFX
FileVersion: 9.20
InternalName: 7zS.sfx
LegalCopyright: Copyright (c) 1999-2010 Igor Pavlov
OriginalFilename: 7zS.sfx.exe
ProductName: 7-Zip
ProductVersion: 9.20
Translation: 0x0409 0x04b0

Trojan.Win32.Witch.hcb also known as:

How to remove Trojan.Win32.Witch.hcb?

• 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.