Categories: Malware

How to remove “Win32/Virlock.G”?

The Win32/Virlock.G 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/Virlock.G virus can do?

  • Executable code extraction
  • Creates RWX memory
  • Detected script timer window indicative of sleep style evasion
  • Expresses interest in specific running processes
  • Reads data out of its own binary image
  • A process created a hidden window
  • Drops a binary and executes it
  • HTTP traffic contains suspicious features which may be indicative of malware related traffic
  • Performs some HTTP requests
  • The binary likely contains encrypted or compressed data.
  • A scripting utility was executed
  • Uses Windows utilities for basic functionality
  • A process attempted to delay the analysis task by a long amount of time.
  • Attempts to repeatedly call a single API many times in order to delay analysis time
  • Installs itself for autorun at Windows startup
  • Creates a hidden or system file
  • 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 Win32/Virlock.G?


File Info:

crc32: 6AC17B83md5: b96d91a77a15e7f8653ce1f6ecdd2d13name: B96D91A77A15E7F8653CE1F6ECDD2D13.mlwsha1: a91c6d8d13cf28d91b939458148ac908e2f2ae05sha256: fe0d1bf3cfb9d2c9efa26530095d4541d82b5b80bc73d21d387ca3e37846b5c8sha512: dfeca21ba09935468b9edc184d6045d5bdb228ad773543f79f2b7dd25cb150100224a560516598584c41841958a800c307dab2afba06c6569a4cd8452595a513ssdeep: 12288:Krg1DaQU9BBezQc3ObNt5A8B+TI8TIV3JEzI0De6uK6iUw3dxh0cfkB+cwLrqrj:ann+x8iRTV7SY3urjtype: PE32 executable (GUI) Intel 80386, for MS Windows

Version Info:

0: [No Data]

Win32/Virlock.G also known as:

Bkav HW32.Packed.
K7AntiVirus Virus ( 005662d71 )
DrWeb Win32.VirLock.10
MicroWorld-eScan Win32.Virlock.Gen.1
ALYac Win32.Virlock.Gen.1
Cylance Unsafe
Zillya Virus.Virlock.Win32.1
Sangfor Malware
CrowdStrike win/malicious_confidence_100% (W)
Alibaba Virus:Win32/PolyRansom.6106e7e0
K7GW Virus ( 005662d71 )
Cybereason malicious.77a15e
TrendMicro PE_VIRLOCK.D
Baidu Win32.Virus.Virlock.a
Cyren W32/S-7d685898!Eldorado
Symantec W32.Virlock!inf4
ESET-NOD32 a variant of Win32/Virlock.G
Zoner Packer.Win32.Virlock
APEX Malicious
TotalDefense Win32/Nabucur.C
Avast Win32:MalOb-FE [Cryp]
ClamAV Win.Virus.Virlock-6332874-0
GData Win32.Virlock.Gen.1
Kaspersky Virus.Win32.PolyRansom.b
BitDefender Win32.Virlock.Gen.1
NANO-Antivirus Trojan.Win32.Gena.doticp
SUPERAntiSpyware Ransom.Virlock/Variant
Tencent Virus.Win32.Polyransom.b
Ad-Aware Win32.Virlock.Gen.1
Sophos W32/VirRnsm-C
Comodo TrojWare.Win32.Virlock.XU@5xaovq
F-Secure Trojan.TR/Crypt.XPACK.Gen7
BitDefenderTheta AI:FileInfector.4097910C13
VIPRE Virus.Win32.Nabucur.b (v)
Invincea heuristic
Trapmine malicious.high.ml.score
FireEye Generic.mg.b96d91a77a15e7f8
Emsisoft Win32.Virlock.Gen.1 (B)
SentinelOne DFI – Malicious PE
F-Prot W32/S-7d685898!Eldorado
Endgame malicious (high confidence)
Avira TR/Crypt.XPACK.Gen7
Antiy-AVL GrayWare/Win32.Virlock.d
Microsoft Virus:Win32/Nabucur.A
Arcabit Win32.Virlock.Gen.1
AegisLab Virus.Win32.PolyRansom.mfPW
ZoneAlarm Virus.Win32.PolyRansom.b
TACHYON Virus/W32.VirRansom
AhnLab-V3 Win32/Nabucur.C.X1541
Acronis suspicious
McAfee W32/VirRansom.b
MAX malware (ai score=82)
VBA32 Virus.VirLock
Malwarebytes Trojan.VirLock
Panda Trj/Genetic.gen
TrendMicro-HouseCall PE_VIRLOCK.D
Rising Malware.Heuristic!ET#100% (RDMK:cmRtazobagTpppTm3NGTbGJDRPTs)
Ikarus Virus.Win32.Virlock
MaxSecure Virus.PolyRansom.b
Fortinet W32/Virlock.D
AVG Win32:MalOb-FE [Cryp]
Paloalto generic.ml
Qihoo-360 Virus.Win32.VirLock.D

How to remove Win32/Virlock.G?

  • 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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