Win32/Kryptik.GWJR (file analysis)

The Win32/Kryptik.GWJR 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/Kryptik.GWJR virus can do?

• SetUnhandledExceptionFilter detected (possible anti-debug)
• Behavioural detection: Executable code extraction – unpacking
• Yara rule detections observed from a process memory dump/dropped files/CAPE
• Creates RWX memory
• Possible date expiration check, exits too soon after checking local time
• Guard pages use detected – possible anti-debugging.
• Dynamic (imported) function loading detected
• A process created a hidden window
• CAPE extracted potentially suspicious content
• Authenticode signature is invalid
• A scripting utility was executed
• Uses Windows utilities for basic functionality
• Attempts to stop active services
• Collects and encrypts information about the computer likely to send to C2 server
• Creates a hidden or system file
• Likely virus infection of existing system binary
• Attempts to disable Windows Defender
• Attempts to modify Windows Defender using PowerShell
• Uses suspicious command line tools or Windows utilities

How to determine Win32/Kryptik.GWJR?

File Info:
name: 9DFB2927D1FFE9D79438.mlw
path: /opt/CAPEv2/storage/binaries/e88fecbcf9cd8f43b63ba8ed4b7a6dcfe158cb8c1b7db915538664397ae1caac
crc32: BBE0684F
md5: 9dfb2927d1ffe9d794382de4c7c1bccd
sha1: 74625421c6745c81a8a3c8a8cd7234b23f4c6e2d
sha256: e88fecbcf9cd8f43b63ba8ed4b7a6dcfe158cb8c1b7db915538664397ae1caac
sha512: e1ea7b94ceb4e8e4ee7cb6dd59fcb651466b8a33fc1c761750ba709c4db87a331016535b362315146095887c9f19928bef3d0fa19c4ee6eabb2fde14aaa766ab
ssdeep: 24576:3Is+7urPJZpNyJwPYYa1rgaqnq3VXRndmTgHqE8m7L6v8yYU0/:UYaSaMqlXRoWH
type: PE32 executable (GUI) Intel 80386, for MS Windows
tlsh: T12125AE2132C1C07BD1F711B38A6A975EA2A6FD214B394AC767C41B6E1F395D39E3130A
sha3_384: ade97cf82573c1beb9bcac6477206c45b4029c40492c4cddf45959b8c40967b122d64d650c86660d3732fe15c5b01515
ep_bytes: e857ff0000e916feffff5064ff350000
timestamp: 2019-08-14 15:40:58

Version Info:
CompanyName: Don Sheck
FileDescription: Maze Solver
FileVersion: 1.0.0.1
InternalName: Maze Walker.exe
LegalCopyright: (c) Don Sheck.  All rights reserved.
OriginalFilename: Maze Walker.exe
ProductName: MazeWalker
ProductVersion: 1.0.5.3
Translation: 0x0409 0x04e4

Win32/Kryptik.GWJR also known as:

How to remove Win32/Kryptik.GWJR?

• 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.