About “Backdoor:Win32/IRCbot.FY” infection

The Backdoor:Win32/IRCbot.FY 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 Backdoor:Win32/IRCbot.FY virus can do?

• 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
• Dynamic (imported) function loading detected
• A process created a hidden window
• CAPE extracted potentially suspicious content
• The binary likely contains encrypted or compressed data.
• Authenticode signature is invalid
• Behavioural detection: Injection (Process Hollowing)
• Executed a process and injected code into it, probably while unpacking
• Queries information on disks, possibly for anti-virtualization
• Detects Sandboxie through the presence of a library
• Behavioural detection: Injection (inter-process)
• Installs itself for autorun at Windows startup
• Operates on local firewall’s policies and settings

How to determine Backdoor:Win32/IRCbot.FY?

File Info:
name: F3A5AB39605118A0689A.mlwpath: /opt/CAPEv2/storage/binaries/444914c847e52859339ba25fb6499c9880223041293102ec0cb0cbd3a6661e7fcrc32: 98916651md5: f3a5ab39605118a0689afc0ca7ab276asha1: 4e51116162fd1ccf6808228d6b9b904813bf0d30sha256: 444914c847e52859339ba25fb6499c9880223041293102ec0cb0cbd3a6661e7fsha512: d6abbe46c51664a050f434aa4004110d4c85bf9a5c102c8f53582ef7c1144f94899b2ccfaf5f1a617c0b0b0fa32da807aef2f9ac48e7edf577ecbbc9706dfd46ssdeep: 1536:uuqNAOCxiH8SWttzZQeCLSQ3pRX7ZlojgWYevDCvbSgBvU:5qfCxjSsFQeVQZRX7ZlEgWqmwvUtype: PE32 executable (GUI) Intel 80386, for MS Windowstlsh: T10793E5C383C2454ED7879CB1B845AB275154DF3800798752B7A27F682E326DBE8A4B1Fsha3_384: 880f1a639c0710e534457bf708de873c08c59baaaa697afe056fe934614b90b9e95a6573f61fdb2da6727befc2e46a06ep_bytes: 558bec6aff6860a04000683090400064timestamp: 2011-09-17 12:44:17
Version Info:
Comments: CompanyName: FileDescription: FileVersion: 2.0InternalName: LegalCopyright: Copyright © 2011LegalTrademarks: OriginalFilename: PrivateBuild: ProductName: ProductVersion: 2.0SpecialBuild: Translation: 0x0410 0x04b0

Backdoor:Win32/IRCbot.FY also known as:

How to remove Backdoor:Win32/IRCbot.FY?

• 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.