Categories: Malware

How to remove “Troj/ZAccess-PI”?

The Troj/ZAccess-PI 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 Troj/ZAccess-PI virus can do?

  • Behavioural detection: Executable code extraction – unpacking
  • Uses Windows utilities for basic functionality
  • Attempted to write to a harddisk volume
  • CAPE extracted potentially suspicious content
  • The binary likely contains encrypted or compressed data.
  • Authenticode signature is invalid
  • Behavioural detection: Injection (Process Hollowing)
  • Behavioural detection: Injection (inter-process)
  • Attempts to identify installed AV products by installation directory
  • Creates a copy of itself
  • Attempts to interact with an Alternate Data Stream (ADS)
  • Anomalous binary characteristics
  • Yara rule detections observed from a process memory dump/dropped files/CAPE

How to determine Troj/ZAccess-PI?


File Info:

name: 062A689F23B625419A85.mlwpath: /opt/CAPEv2/storage/binaries/fda3457af3ee62993b607925e3b5fb8c0bca98512f5b6262b4bed915f126dcdecrc32: A64FC237md5: 062a689f23b625419a851431f6447336sha1: 44b7bc39071bd576ce0430c60b56b7214fb9ebe1sha256: fda3457af3ee62993b607925e3b5fb8c0bca98512f5b6262b4bed915f126dcdesha512: 29e2637aeb0418c3b4e48be8a1fd8f814c7f0ccedd4832e4d77d0098c498b41474ce6f9dae053ab5cb2d97ecad93372cc6b9dd172556cce81af0b5b7ae0a1514ssdeep: 3072:PF74n6b7PXvo8SmTYRYnpp3gbQ7+o8efT/Kc72DryRIaeE3FRr:Pha6/fvo8nTYRYnR7Kc72Du3pHrtype: PE32 executable (GUI) Intel 80386, for MS Windowstlsh: T1EDE3F106B74D3A9FF1AA0E35007E151B8695BE34271347CB650DBD6F6A6E3F29B14302sha3_384: 2f5c64fafbc29c2d8490633ee679f573d3acde1abb8fe19c54f4185f3330b467495ed8802584bb38c4c2be8ff1eb8694ep_bytes: 6a00588d14388d04308d3d6034020189timestamp: 2013-08-17 15:33:00

Version Info:

CompanyName: TorchSoftFileDescription: Registry WorkshopFileVersion: 4, 1, 0, 0InternalName: Registry WorkshopLegalCopyright: Copyright 2004-2009OriginalFilename: RegWorkshop.dllProductName: Registry WorkshopProductVersion: 4, 1, 0, 0Translation: 0x0409 0x04b0

Troj/ZAccess-PI also known as:

Bkav W32.AIDetectMalware
Lionic Trojan.Win32.Generic.4!c
Elastic malicious (high confidence)
MicroWorld-eScan Gen:Heur.Cridex.2
Skyhigh ZeroAccess-FBE!062A689F23B6
McAfee ZeroAccess-FBE!062A689F23B6
Zillya Trojan.Kryptik.Win32.582598
Sangfor Trojan.Win32.Sirefef.Vco2
K7AntiVirus Trojan ( 0040f6661 )
Alibaba VirTool:Win32/Obfuscator.7870cec2
K7GW Trojan ( 004c484c1 )
CrowdStrike win/malicious_confidence_100% (W)
VirIT Trojan.Win32.Crypt_s.CPJ
Symantec ML.Attribute.HighConfidence
ESET-NOD32 a variant of Win32/Kryptik.BIFQ
APEX Malicious
Kaspersky HEUR:Trojan.Win32.Generic
BitDefender Gen:Heur.Cridex.2
NANO-Antivirus Trojan.Win32.Maxplus.dclahz
Avast Win32:Evo-gen [Trj]
Tencent Win32.Trojan.Generic.Agow
Sophos Troj/ZAccess-PI
F-Secure Trojan.TR/Kazy.14796812
DrWeb BackDoor.Maxplus.12847
VIPRE Gen:Heur.Cridex.2
TrendMicro TROJ_SIRFEF.SMAU
Trapmine malicious.high.ml.score
FireEye Generic.mg.062a689f23b62541
Emsisoft Gen:Heur.Cridex.2 (B)
SentinelOne Static AI – Malicious PE
MAX malware (ai score=85)
GData Gen:Heur.Cridex.2
Webroot W32.Rogue.Gen
Google Detected
Avira TR/Kazy.14796812
Varist W32/S-b9845c87!Eldorado
Antiy-AVL Trojan[Backdoor]/Win32.ZAccess
Kingsoft malware.kb.a.1000
Xcitium TrojWare.Win32.Kryptik.BUFZ@4zx7zj
Arcabit Trojan.Cridex.2
ZoneAlarm HEUR:Trojan.Win32.Generic
Microsoft Trojan:Win32/Sirefef.P
Cynet Malicious (score: 100)
AhnLab-V3 Backdoor/Win32.ZAccess.R79091
Acronis suspicious
ALYac Gen:Heur.Cridex.2
VBA32 BScope.Backdoor.Maxplus
Cylance unsafe
Panda Trj/Genetic.gen
TrendMicro-HouseCall TROJ_SIRFEF.SMAU
Rising Trojan.Sirefef!8.137 (TFE:5:tTOfbPrEpKI)
Ikarus Trojan.Crypt_s
MaxSecure Trojan.Malware.300983.susgen
Fortinet W32/ZAccess.CVX!tr.bdr
BitDefenderTheta Gen:NN.ZexaF.36738.ju0@aeCu25ai
AVG Win32:Evo-gen [Trj]
Cybereason malicious.9071bd
DeepInstinct MALICIOUS

How to remove Troj/ZAccess-PI?

  • 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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