Categories: Malware

About “VirTool:Win32/Obfuscator.UO” infection

The VirTool:Win32/Obfuscator.UO 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.UO virus can do?

  • Executable code extraction
  • Creates RWX memory
  • Network activity detected but not expressed in API logs
  • Anomalous binary characteristics

How to determine VirTool:Win32/Obfuscator.UO?


File Info:

crc32: F0F50DAEmd5: 24ed5dd8e3be9181bdb58b71dbacc0a0name: 24ED5DD8E3BE9181BDB58B71DBACC0A0.mlwsha1: 400591b979be439b789471618cdb861aa6dc9296sha256: 1a223ad9c2acf3773fd4f41d545fe2962d1df49cbdc0fa6649f00b96fe0205dfsha512: 106d3a83195c92da3986d4a6f854cfcc7ef61b98567749a04d48dc430e038d17de762b315a716c2dedee39dea7369d8b072424e60a3e28682727636df17808e7ssdeep: 3072:yKn5VTTYAhx1NYnNuLwaebav2NldJNIQJDnk:yUVR1NYnocaebaeldDISDntype: PE32 executable (GUI) Intel 80386, for MS Windows

Version Info:

LegalCopyright: Copyright (C) 2000-2010 TightVNC GroupInternalName: vncviewerFileVersion: 1.5.2.0CompanyName: TightVNC GroupPrivateBuild: LegalTrademarks: Comments: Based on VNC by AT&T Research Labs Cambridge, RealVNC Ltd.ProductName: TightVNC Win32 ViewerSpecialBuild: ProductVersion: 1.5.2.0FileDescription: vncviewerOriginalFilename: vncviewer.exeTranslation: 0x0409 0x04b0

VirTool:Win32/Obfuscator.UO also known as:

Bkav W32.AIDetect.malware1
Lionic Trojan.Win32.Generic.4!c
Elastic malicious (high confidence)
Cynet Malicious (score: 100)
ALYac Gen:Variant.Razy.849045
Cylance Unsafe
Zillya Trojan.Kryptik.Win32.923718
Sangfor Suspicious.Win32.Save.a
CrowdStrike win/malicious_confidence_100% (D)
Alibaba Trojan:Win32/Kryptik.f9bc6e97
Cybereason malicious.8e3be9
Cyren W32/Zbot.CK.gen!Eldorado
Symantec ML.Attribute.HighConfidence
ESET-NOD32 a variant of Win32/Kryptik.MOB
APEX Malicious
Avast Win32:MalOb-ID [Cryp]
Kaspersky HEUR:Trojan.Win32.Generic
BitDefender Gen:Variant.Razy.849045
NANO-Antivirus Trojan.Win32.Crypted.eclarn
MicroWorld-eScan Gen:Variant.Razy.849045
Tencent Win32.Trojan.Kryptik.Hssz
Ad-Aware Gen:Variant.Razy.849045
Sophos ML/PE-A + Mal/EncPk-ZC
Comodo Malware@#3vi93y676x10s
F-Secure Trojan.TR/Crypt.XPACK.Gen
BitDefenderTheta Gen:NN.ZexaF.34236.Ov0@amrlXHoi
VIPRE Trojan.Win32.Generic!BT
TrendMicro TSPY_ZBOT.SMYX
McAfee-GW-Edition PWS-Zbot.gen.axh
FireEye Generic.mg.24ed5dd8e3be9181
Emsisoft Gen:Variant.Razy.849045 (B)
SentinelOne Static AI – Malicious PE
Jiangmin TrojanSpy.Zbot.azbn
Avira TR/Crypt.XPACK.Gen
Antiy-AVL Trojan/Generic.ASMalwS.18B0265
Microsoft VirTool:Win32/Obfuscator.UO
Arcabit Trojan.Razy.DCF495
SUPERAntiSpyware Trojan.Agent/Gen-Kryptik
ZoneAlarm HEUR:Trojan.Win32.Generic
GData Gen:Variant.Razy.849045
Acronis suspicious
McAfee PWS-Zbot.gen.axh
MAX malware (ai score=99)
VBA32 BScope.Trojan.Zbot.01472
Panda Trj/Banker.JJG
TrendMicro-HouseCall TSPY_ZBOT.SMYX
Yandex Trojan.Kryptik!zkAlpsLLbaQ
Ikarus Trojan.Win32.Extats
Fortinet W32/Kryptik.HZ!tr
AVG Win32:MalOb-ID [Cryp]
Paloalto generic.ml

How to remove VirTool:Win32/Obfuscator.UO?

  • 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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