Win32/HackTool.Agent.NIR (file analysis)

Malware Removal

The Win32/HackTool.Agent.NIR 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/HackTool.Agent.NIR virus can do?

  • SetUnhandledExceptionFilter detected (possible anti-debug)
  • Yara rule detections observed from a process memory dump/dropped files/CAPE
  • Dynamic (imported) function loading detected
  • Enumerates running processes
  • Repeatedly searches for a not-found process, may want to run with startbrowser=1 option
  • The binary contains an unknown PE section name indicative of packing
  • Authenticode signature is invalid
  • Uses Windows utilities for basic functionality
  • Attempts to modify proxy settings

How to determine Win32/HackTool.Agent.NIR?

File Info:

name: 280519404A3276A6C12E.mlw
path: /opt/CAPEv2/storage/binaries/34763f896a972a2405eebe821d9f2920b4848156b68ec2fe4fbabf66a3b8b595
crc32: 8EAF88D5
md5: 280519404a3276a6c12ef81f6b6e5930
sha1: 56f955251505e122f3dd867cc88842a99d129b3d
sha256: 34763f896a972a2405eebe821d9f2920b4848156b68ec2fe4fbabf66a3b8b595
sha512: 6206ff203ae2acb2d5b094559c828f3472ee81fb778eec4eb528ae606cdf824682baf6074e4887eebf622b0309c8a2e6707909e79f98c99b6acd5733e59a5ede
ssdeep: 24576:FXps+1qq3DY/jhexAIFfl0PbfrkzLMOFIcI3h3VuQ5er2iR:FXpxEheHFUElr2iR
type: PE32 executable (console) Intel 80386, for MS Windows
tlsh: T15F751953AACB0EB2C9D327F0A5C753766334ED648A26CF7BE208C5359EA36C16D49701
sha3_384: bd39f7486df3a263d9f4889783809e7d4f1ef244a77a617c35c03d0a7743969b6625a3624d92cf77ff6e09c1d68a21a5
ep_bytes: 83ec0cc70558704a0000000000e88ebb
timestamp: 2022-04-22 15:15:58

Version Info:

0: [No Data]

Win32/HackTool.Agent.NIR also known as:

Elasticmalicious (high confidence)
K7AntiVirusHacktool ( 005910c01 )
K7GWHacktool ( 005910c01 )
CrowdStrikewin/malicious_confidence_90% (W)
ESET-NOD32a variant of Win32/HackTool.Agent.NIR
AvastFileRepMalware [Misc]
SophosGeneric PUA FG (PUA)
CynetMalicious (score: 100)
RisingTrojan.Casur!8.10E51 (TFE:dGZlOgXUnMKOVNEdkA)
AVGFileRepMalware [Misc]

How to remove Win32/HackTool.Agent.NIR?

Win32/HackTool.Agent.NIR removal tool
  • 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.

About the author

Paul Valéry

I'm a cyber security analyst and data science expert with 5+ years of experience with security software contractors.

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