Categories: Trojan

NSIS/TrojanDownloader.Grinidou.I removal guide

The NSIS/TrojanDownloader.Grinidou.I 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 NSIS/TrojanDownloader.Grinidou.I virus can do?

  • Sample contains Overlay data
  • Yara rule detections observed from a process memory dump/dropped files/CAPE
  • Reads data out of its own binary image
  • The binary likely contains encrypted or compressed data.
  • Authenticode signature is invalid

How to determine NSIS/TrojanDownloader.Grinidou.I?


File Info:

name: CBF46207C9BC30E85ABF.mlwpath: /opt/CAPEv2/storage/binaries/510a7233891418985f81f6aa8395996fde2e43d1dc56a8c029e5f6d0a5ebb4f9crc32: A49C4F3Fmd5: cbf46207c9bc30e85abf3be1c8c75de2sha1: 0ba73d5e15af9be3ecc565f15e90317099d98ad4sha256: 510a7233891418985f81f6aa8395996fde2e43d1dc56a8c029e5f6d0a5ebb4f9sha512: 698043429166fd10cf461d96046648f03edba35e89f8cb0e5ed8592d6f88f0654ac61c8b75b525d7643a1942746b2df13adedc67d7f11593824f3b2dad0994f5ssdeep: 3072:QY3dFNJPmDamJzQ62OzbLDPo56IUZ42B3bmEdHZ1rDrPF+d5dpaCpM:Q+npEQozTM/ub11rDrPF+d5d4CpMtype: PE32 executable (GUI) Intel 80386, for MS Windowstlsh: T1E8F3063A5490D7A7FEE891F4D82967AD8EBF1E4080D2220715AB7DCCFE79F6B4109490sha3_384: b9fd58eed401a3527744a7bb112c37e9274f140e65c1a69f2b6458c53ffdbfe00440d653c63bf37ea3d85159e3433c61ep_bytes: 81ec8001000053555633db57895c2418timestamp: 2009-02-21 19:46:39

Version Info:

0: [No Data]

NSIS/TrojanDownloader.Grinidou.I also known as:

Bkav W32.AIDetect.malware2
Lionic Trojan.Win32.Hicrazyk.a!c
MicroWorld-eScan Trojan.Downloader.Hicrazyk.A
ClamAV Win.Trojan.Hicrazyk-12
CAT-QuickHeal TrjnDwnldr.NSIS.Hicrazyk.A
McAfee Artemis!CBF46207C9BC
Cylance Unsafe
Sangfor Trojan.Win32.Downloader.A
K7AntiVirus Trojan-Downloader ( 0055e3ed1 )
Alibaba TrojanDownloader:Win32/Hicrazyk.c6bf7f0d
K7GW Trojan-Downloader ( 0055e3ed1 )
Cybereason malicious.7c9bc3
Baidu NSIS.Trojan-Downloader.Grinidou.a
Symantec Downloader
Elastic malicious (moderate confidence)
ESET-NOD32 NSIS/TrojanDownloader.Grinidou.I
APEX Malicious
Cynet Malicious (score: 99)
Kaspersky HEUR:Trojan-Downloader.NSIS.Chindo.gen
BitDefender Trojan.Downloader.Hicrazyk.A
NANO-Antivirus Trojan.Nsis.Grinidou.dcbduk
Avast NSIS:Downloader-AAW [Adw]
Tencent Nsis.Trojan-Downloader.Ader.Rwhl
Emsisoft Trojan.Downloader.Hicrazyk.A (B)
Comodo Malware@#1r798vrfa5jpv
VIPRE Trojan.Downloader.Hicrazyk.A
McAfee-GW-Edition StartPage-NY
FireEye Trojan.Downloader.Hicrazyk.A
GData Trojan.Downloader.Hicrazyk.A
Avira HEUR/AGEN.1220317
MAX malware (ai score=100)
Antiy-AVL Trojan/Generic.ASMalwNS.CB7
Kingsoft Win32.TrojDownloader.Hicrazyk.h.(kcloud)
Microsoft Trojan:Win32/Wacatac.B!ml
Google Detected
ALYac Trojan.Downloader.Hicrazyk.A
VBA32 suspected of Trojan.Downloader.gen
Ikarus Trojan-Downloader.Win32.Hicrazyk
MaxSecure Trojan.Malware.300983.susgen
Fortinet W32/StartPage.NY!tr
AVG NSIS:Downloader-AAW [Adw]
Panda Trj/CI.A
CrowdStrike win/malicious_confidence_70% (W)

How to remove NSIS/TrojanDownloader.Grinidou.I?

  • 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.
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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