What is “Ransom:Win32/Grymegat.B”?

The Ransom:Win32/Grymegat.B 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 Ransom:Win32/Grymegat.B virus can do?

• Injection (inter-process)
• Injection (Process Hollowing)
• Attempts to connect to a dead IP:Port (1 unique times)
• Creates RWX memory
• Possible date expiration check, exits too soon after checking local time
• Drops a binary and executes it
• Unconventionial language used in binary resources: Spanish (El Salvador)
• Uses Windows utilities for basic functionality
• Executed a process and injected code into it, probably while unpacking
• Attempts to repeatedly call a single API many times in order to delay analysis time
• Creates or sets a registry key to a long series of bytes, possibly to store a binary or malware config
• Installs itself for autorun at Windows startup
• Creates a hidden or system file
• Attempts to modify proxy settings
• Operates on local firewall’s policies and settings
• Creates a copy of itself
• Attempts to disable UAC
• Anomalous binary characteristics
• Uses suspicious command line tools or Windows utilities

Related domains:

How to determine Ransom:Win32/Grymegat.B?

File Info:
crc32: C6774A15md5: 0c577a1dc4975765d23bfdae0d721fa0name: 0C577A1DC4975765D23BFDAE0D721FA0.mlwsha1: f60c3ad30b805daca607d663b5b26f9493a1f9c3sha256: 4fdcff576232f30dfe46fd9df02323d6846ab676a42a57d777a507ad26f46346sha512: ad43b7bf0ee9964755a95669afa89b74c9915f4fbec02e07e0c0b4c730b664c8854f649157a08d977d07ecf5dc09f577b7d00438617c27b3b630ce302c3ef6ebssdeep: 3072:kt0ZqVocYKCcYdNEeL9lHg6JuvhAcRu7:kt0ZqmcYxvLL9W6JCLtype: PE32 executable (GUI) Intel 80386 (stripped to external PDB), for MS Windows
Version Info:
LegalCopyright: Copyright (c) 2009 IBM.com  All Rights ReservedInternalName: IBMFileVersion: 3.00.009CompanyName: www.IBM.comLegalTrademarks: IBM.comComments: IBM - microprocessor emulatorProductName: IBM Microprocessor EmulatorProductVersion: 3.00.009FileDescription: IBMOriginalFilename: IBM.exeTranslation: 0x0409 0x04b0

Ransom:Win32/Grymegat.B also known as:

How to remove Ransom:Win32/Grymegat.B?

• 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.