Categories: Malware

Should I remove “VirTool:Win32/Obfuscator.ZAH!bit”?

The VirTool:Win32/Obfuscator.ZAH!bit 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 VirTool:Win32/Obfuscator.ZAH!bit virus can do?

  • SetUnhandledExceptionFilter detected (possible anti-debug)
  • Behavioural detection: Executable code extraction – unpacking
  • Yara rule detections observed from a process memory dump/dropped files/CAPE
  • Creates RWX memory
  • Dynamic (imported) function loading detected
  • CAPE extracted potentially suspicious content
  • The binary likely contains encrypted or compressed data.
  • Authenticode signature is invalid

How to determine VirTool:Win32/Obfuscator.ZAH!bit?


File Info:

name: 566AEF540229155DC4D9.mlwpath: /opt/CAPEv2/storage/binaries/acbc065cd48c13ce081ab87be3e1e30d22c82a22c8f4e68096192f2381ab5b61crc32: 9548175Bmd5: 566aef540229155dc4d944397e36b79asha1: db7bdd023d6181fe2862a7559c78550cdbc01703sha256: acbc065cd48c13ce081ab87be3e1e30d22c82a22c8f4e68096192f2381ab5b61sha512: 2a67a81d97400dd5d530bb3e66f1889222041b8a12d859d931a8ef77f3be666f671c4d58d3822c881cb9236dd770f2e58cd78cb55d87795d52f1a5219656ae22ssdeep: 24576:9x9zlWMmq9ZjTA/Ik2n8neJnMdYpU/6Zo44pZf6hIA9bDgCx:LT3ZKD2XJnMdYpU/6Zo4CZf6hIA9bDgAtype: PE32 executable (GUI) Intel 80386, for MS Windowstlsh: T13C15692A33A0493DD2C7CEFA809653087B22D5DF2521C92D99C785613B1A88CDF97FD9sha3_384: 1126a9e4df6f2d07cc004eea53d9bac5cbab8b43f5b32a24182c43d825eeb8d67e944f46a7cf4ec2254d075876348311ep_bytes: e816220000e97ffeffff558becff1520timestamp: 2016-06-11 16:35:40

Version Info:

0: [No Data]

VirTool:Win32/Obfuscator.ZAH!bit also known as:

Bkav W32.AIDetect.malware1
Lionic Trojan.Multi.Generic.4!c
Elastic malicious (high confidence)
MicroWorld-eScan Gen:Variant.Symmi.66623
FireEye Generic.mg.566aef540229155d
CAT-QuickHeal Trojan.Razy.B5
ALYac Gen:Variant.Symmi.66623
Cylance Unsafe
Zillya Trojan.Kryptik.Win32.905536
Sangfor Trojan.Win32.Kryptik.8
K7AntiVirus Trojan ( 004f499a1 )
Alibaba VirTool:Win32/Obfuscator.607fc066
K7GW Trojan ( 004f18811 )
Cybereason malicious.402291
Baidu Win32.Trojan.Kryptik.aip
Cyren W32/S-e218e2ee!Eldorado
Symantec ML.Attribute.HighConfidence
ESET-NOD32 a variant of Win32/Kryptik.EZQK
APEX Malicious
Kaspersky UDS:DangerousObject.Multi.Generic
BitDefender Gen:Variant.Symmi.66623
NANO-Antivirus Trojan.Win32.WebPick.edjzjv
SUPERAntiSpyware Trojan.Agent/Gen-Kryptik
Avast Win32:TrojanX-gen [Trj]
Tencent Win32.Trojan.Kryptik.Svhq
Ad-Aware Gen:Variant.Symmi.66623
Sophos Mal/Generic-S
Comodo TrojWare.Win32.Agent.EZQK@6f42me
DrWeb Trojan.WebPick.9476
VIPRE Trojan.Win32.Generic!BT
TrendMicro TROJ_GEN.R002C0DKR21
McAfee-GW-Edition BehavesLike.Win32.Generic.dc
Emsisoft Gen:Variant.Symmi.66623 (B)
SentinelOne Static AI – Malicious PE
GData Gen:Variant.Symmi.66623
Avira TR/Crypt.XPACK.Gen2
MAX malware (ai score=82)
Kingsoft Win32.Troj.Generic_a.a.(kcloud)
Microsoft VirTool:Win32/Obfuscator.ZAH!bit
Cynet Malicious (score: 100)
AhnLab-V3 Malware/Win32.Generic.C1476594
Acronis suspicious
McAfee GenericRXAA-AA!566AEF540229
VBA32 BScope.Adware.Linkury
Malwarebytes Malware.AI.3197538019
TrendMicro-HouseCall TROJ_GEN.R002C0DKR21
Rising Trojan.Generic@ML.100 (RDML:s6H7K1Z16jC77jQSeRYJ0w)
Ikarus Virus.Win32.Obfuscator
eGambit Unsafe.AI_Score_84%
Fortinet W32/Kryptik.FAAO!tr
BitDefenderTheta Gen:NN.ZexaF.34294.5uW@aW5sc3fi
AVG Win32:TrojanX-gen [Trj]
Panda Trj/Genetic.gen

How to remove VirTool:Win32/Obfuscator.ZAH!bit?

  • 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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