Categories: Worm

Should I remove “Worm.Win32.Yah.a”?

The Worm.Win32.Yah.a 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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Removing PC viruses manually may take hours and may damage your PC in the process. We recommend using GridinSoft Anti-Malware for virus removal. Allows to complete scan and cure your PC during the trial period.
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What Worm.Win32.Yah.a virus can do?

  • Yara rule detections observed from a process memory dump/dropped files/CAPE
  • A process attempted to delay the analysis task.
  • Dynamic (imported) function loading detected
  • Drops a binary and executes it
  • Authenticode signature is invalid
  • Created a process from a suspicious location
  • Installs itself for autorun at Windows startup
  • Attempts to disable UAC
  • Attempts to modify UAC prompt behavior

How to determine Worm.Win32.Yah.a?


File Info:

name: 75523BBF4F40A4EF42D5.mlwpath: /opt/CAPEv2/storage/binaries/e97505c1979e08ee395e57c9a10a1d8ed9c4f0c8cbba0ee36105646e6e8d8615crc32: 0BB6350Emd5: 75523bbf4f40a4ef42d562e7c4003b2bsha1: bc5b893175b9670054b183abde7332dc13d4aa73sha256: e97505c1979e08ee395e57c9a10a1d8ed9c4f0c8cbba0ee36105646e6e8d8615sha512: 36dbd774eee457301ca3a54394e4bfa7a60379d24d087beb78528f19f58bf24f7907d22553867ed44cfe6352f5e59f0524a01ed4e46c6f5215ee72e797931618ssdeep: 12288:UVgvmzFHi0mo5aH0qMzd58D7F0PJQPDHvd:UVgvOHi0mGaH0qSdEFO4Vtype: PE32 executable (GUI) Intel 80386, for MS Windowstlsh: T14476B037B781C8F2C49580317299AE135EF9AC701524EA57DB60CE093EF91E5D72A38Bsha3_384: d9a260e3d68d95f2bcbd568455b8c1b7d38c99af600641c17f9bad16db052b8c7547264e093cd761c1c4a19f0a8f43f2ep_bytes: 6a6068f8b74200e8edf7ffffbf940000timestamp: 2006-12-09 02:52:17

Version Info:

0: [No Data]

Worm.Win32.Yah.a also known as:

Bkav W32.FamVT.DxlMC4TTc.Worm
Elastic malicious (high confidence)
MicroWorld-eScan Gen:Variant.Pykspa.1
FireEye Generic.mg.75523bbf4f40a4ef
CAT-QuickHeal Worm.Pykspa.C3
McAfee W32/Pykse.worm.gen.a
Cylance Unsafe
Zillya Backdoor.PePatch.Win32.23386
K7AntiVirus Trojan ( 003da8d71 )
K7GW Trojan ( 003da8d71 )
Cybereason malicious.f4f40a
BitDefenderTheta Gen:NN.ZexaF.34294.@pW@aCp5yaj
Cyren W32/Pykspa.A.gen!Eldorado
Symantec W32.Pykspa.D
ESET-NOD32 Win32/AutoRun.Agent.TG
Baidu Win32.Worm.Autorun.o
TrendMicro-HouseCall TROJ_AGENT_006376.TOMB
ClamAV Win.Worm.Autorun-437
Kaspersky Worm.Win32.Yah.a
BitDefender Gen:Variant.Pykspa.1
NANO-Antivirus Trojan.Win32.AntiAV.dsnxsg
Avast Win32:Renos-KY [Trj]
Tencent Trojan.Win32.BitCoinMiner.la
Ad-Aware Gen:Variant.Pykspa.1
Emsisoft Gen:Variant.Pykspa.1 (B)
Comodo Worm.Win32.Autorun.Agent_TG0@1isiwy
DrWeb Trojan.Kypes.2
VIPRE Worm.Win32.Skyper.b (v)
TrendMicro TROJ_AGENT_006376.TOMB
McAfee-GW-Edition BehavesLike.Win32.Pykse.wz
Sophos ML/PE-A + W32/Skyper-B
Ikarus Trojan.Agent
GData Gen:Variant.Pykspa.1
Jiangmin Trojan/Vilsel.cgx
Webroot W32.Trojan.Gen
Avira TR/Agent.327680.A
MAX malware (ai score=82)
Antiy-AVL Trojan/Generic.ASMalwS.2ADE
Kingsoft Heur.SSC.1767.1216.(kcloud)
Arcabit Trojan.Pykspa.1
ViRobot Trojan.Win32.Blocker.Gen.B
APEX Malicious
Microsoft Worm:Win32/Pykspa.C
Cynet Malicious (score: 100)
AhnLab-V3 Trojan/Win32.Zepfod.R4378
Acronis suspicious
VBA32 Worm.Yah
ALYac Gen:Variant.Pykspa.1
TACHYON Worm/W32.Yah.7417856
Malwarebytes Worm.Agent
Rising Malware.Heuristic!ET#100% (RDMK:cmRtazoYjqBCMEk59Sm7WileU3d8)
Yandex Trojan.GenAsa!qHVVdB/AORM
SentinelOne Static AI – Malicious PE
eGambit Unsafe.AI_Score_99%
Fortinet W32/Agent.XEK!tr
AVG Win32:Renos-KY [Trj]
Panda W32/SpySkype.E
CrowdStrike win/malicious_confidence_100% (D)
MaxSecure Backdoor.Zepfod.A

How to remove Worm.Win32.Yah.a?

  • 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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Paul Valéry

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