Win32/RA-based.NKF (file analysis)

The Win32/RA-based.NKF 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/RA-based.NKF virus can do?

• A file was accessed within the Public folder.
• Sample contains Overlay data
• Uses Windows utilities for basic functionality
• Reads data out of its own binary image
• CAPE extracted potentially suspicious content
• Drops a binary and executes it
• Unconventionial language used in binary resources: Russian
• The binary contains an unknown PE section name indicative of packing
• Authenticode signature is invalid
• Uses Windows utilities to create a scheduled task
• CAPE detected the RemoteUtilitiesRAT malware family
• Detects Bochs through the presence of a registry key
• Created a service that was not started
• Collects information to fingerprint the system
• Uses suspicious command line tools or Windows utilities
• Yara detections observed in process dumps, payloads or dropped files

How to determine Win32/RA-based.NKF?

File Info:
name: 24CAE17860A840C03170.mlwpath: /opt/CAPEv2/storage/binaries/7adfb53ec021010a6921ac70f006c588d25278591ebc7a141a97db8e8ce10e2ccrc32: 53183672md5: 24cae17860a840c0317018ef3d607e94sha1: 7595283fd24ebae9f95ea80209d674ca9bd2afccsha256: 7adfb53ec021010a6921ac70f006c588d25278591ebc7a141a97db8e8ce10e2csha512: bdfe1b899ef55a0ae793e672c190d79161899179d98b0577b5ceda8f02c66376ca0d366c0f087dbb043d30c7ec41a39b0cd2fcc6be4d66639777c6430db3ee82ssdeep: 98304:kAI++j2SXJXO2Irr2pLTRl6sBxxN0PCj9AGs0pLpylbGV7oEB:jt+jBXpq3inRlRPACj9AGs0Xylbi7oEBtype: PE32 executable (GUI) Intel 80386, for MS Windowstlsh: T1F636337AE24184B7E0730B78991F86B5B435AF3D97389AEF33D6AB0C5C1334A4152399sha3_384: 91d0af2659d3d0471d439283bbda029c150af822eea41fc3c74b6b7368f0aea232b2701b811941a62fb98867354a2eb4ep_bytes: 558bec83c4f0b888534200e824f2fdfftimestamp: 1992-06-19 22:22:17
Version Info:
CompanyName: Microsoft CorporationFileDescription: Adobe® Flash® PlayerFileVersion: 6.3.0.6LegalCopyright: Copyright © 1996-2016 Adobe Systems IncorporatedLegalTrademarks: Adobe® Flash® PlayerProductName: Adobe® Flash® PlayerProductVersion: 6.3.0.6Translation: 0x0409 0x04e4

Win32/RA-based.NKF also known as:

How to remove Win32/RA-based.NKF?

• 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.