Categories: Malware

Dropped:Win32.Virlock.Gen.4 malicious file

The Dropped:Win32.Virlock.Gen.4 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 Dropped:Win32.Virlock.Gen.4 virus can do?

  • Behavioural detection: Executable code extraction – unpacking
  • A file was accessed within the Public folder.
  • Uses Windows utilities for basic functionality
  • Reads data out of its own binary image
  • Drops a binary and executes it
  • The binary likely contains encrypted or compressed data.
  • Authenticode signature is invalid
  • Uses Windows utilities to create a scheduled task
  • Deletes executed files from disk
  • Attempts to disable UAC
  • Anomalous binary characteristics
  • Attempts to modify Explorer settings to prevent file extensions from being displayed
  • Attempts to modify Explorer settings to prevent hidden files from being displayed
  • Uses suspicious command line tools or Windows utilities

How to determine Dropped:Win32.Virlock.Gen.4?


File Info:

name: 729B056F59EB6DEAFE3E.mlwpath: /opt/CAPEv2/storage/binaries/1535be272cce5258939cd8289ebdb736a0555a611a30e9e0676302b2610c52c9crc32: DB8F064Cmd5: 729b056f59eb6deafe3e59666907b556sha1: 26408ff7856dc3ca35e9dc5cf6425555e0922a38sha256: 1535be272cce5258939cd8289ebdb736a0555a611a30e9e0676302b2610c52c9sha512: ead30827cf3c07fe12969cb0f2961a8adfc7989ff185128f14124718f2c6441878780cd28cdf57a92b66c5e32a4e755abe2a51b9959669aed8462948dd9ee23fssdeep: 12288:SHrubl2JhnsWtNwNLHFjFxUWdJBNCwzvc2w/tX:SLubgbnUJddC4vEtype: PE32 executable (GUI) Intel 80386, for MS Windowstlsh: T164C4AF339AC0FC04851D4E7ECDEA2879424FC787596B19B820B9F193A7261523FD866Fsha3_384: ca7a78d2717710c3436d4c89a8adcd0f3e2590a41f5a865eaa71a1687c4526e42c08b51edfe217effed55f9389f04e65ep_bytes: ba1f9a0600bbf6cf030081eac3120c00timestamp: 1970-01-01 00:02:03

Version Info:

0: [No Data]

Dropped:Win32.Virlock.Gen.4 also known as:

Bkav W32.AIDetectMalware
tehtris Generic.Malware
DrWeb Win32.VirLock.2
MicroWorld-eScan Dropped:Win32.Virlock.Gen.4
CAT-QuickHeal Ransom.PolyRansom.B2
Skyhigh BehavesLike.Win32.VirRansom.hc
McAfee W32/VirRansom
Malwarebytes Generic.Malware.AI.DDS
VIPRE Dropped:Win32.Virlock.Gen.4
Sangfor Ransom.Win32.Save.a
K7AntiVirus Virus ( 0040f99f1 )
K7GW Virus ( 0040f99f1 )
CrowdStrike win/malicious_confidence_100% (W)
BitDefenderTheta AI:Packer.FC7261841D
VirIT Win32.CryptorGen.B
Symantec W32.Virlock!inf
Elastic malicious (high confidence)
ESET-NOD32 a variant of Win32/Virlock.D
APEX Malicious
Cynet Malicious (score: 100)
Kaspersky Virus.Win32.PolyRansom.a
BitDefender Dropped:Win32.Virlock.Gen.4
NANO-Antivirus Trojan.Win32.Kryptik.dmrlkh
Avast Win32:VirLock [Inf]
Tencent Virus.Win32.VirLocker.b
Emsisoft Dropped:Win32.Virlock.Gen.4 (B)
F-Secure Trojan.TR/Crypt.XPACK.Gen7
Baidu Win32.Virus.Virlock.a
Zillya Virus.PolyRansom.Win32.1
TrendMicro PE_VIRLOCK.C
Trapmine malicious.high.ml.score
FireEye Generic.mg.729b056f59eb6dea
Sophos W32/VirRnsm-A
SentinelOne Static AI – Malicious PE
GData Dropped:Win32.Virlock.Gen.4
Jiangmin Win32/Polyransom.a
Google Detected
Avira TR/Crypt.XPACK.Gen7
MAX malware (ai score=80)
Antiy-AVL Virus/Win32.PolyRansom.a
Xcitium Packed.Win32.Graybird.B@5hgpd5
Arcabit Win32.Virlock.Gen.4
ZoneAlarm Virus.Win32.PolyRansom.a
Microsoft Virus:Win32/Nabucur.A
Varist W32/S-27bc0672!Eldorado
Acronis suspicious
VBA32 Virus.VirLock
ALYac Dropped:Win32.Virlock.Gen.4
TACHYON Virus/W32.VirRansom.C
Cylance unsafe
Panda Trj/Genetic.gen
TrendMicro-HouseCall PE_VIRLOCK.C
Rising Trojan.Vindor!8.10CC (TFE:2:Mo3MqKZRl5F)
Yandex Virus.Virlock.Gen.AAJ
Ikarus Virus-Ransom.FileLocker
MaxSecure Virus.PolyRansom.a
Fortinet W32/Virlock.K
AVG Win32:VirLock [Inf]
Cybereason malicious.7856dc
DeepInstinct MALICIOUS

How to remove Dropped:Win32.Virlock.Gen.4?

  • 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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