Categories: RansomTrojan

Should I remove “Trojan-Ransom.Win32.Petr.a”?

The Trojan-Ransom.Win32.Petr.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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What Trojan-Ransom.Win32.Petr.a virus can do?

  • Executable code extraction
  • Creates RWX memory
  • Drops a binary and executes it
  • The binary likely contains encrypted or compressed data.
  • Likely installs a bootkit via raw harddisk modifications
  • Attempts to restart the guest VM
  • Network activity detected but not expressed in API logs

How to determine Trojan-Ransom.Win32.Petr.a?


File Info:

crc32: F4D8540Amd5: b07678285eb434c1d502c322139133a5name: B07678285EB434C1D502C322139133A5.mlwsha1: afb5a3e7ad525eaad5ab0a68bf4b8b5bb686c3fbsha256: 9707a2945c652503e1952c912bc41566d561d75d184c057268e20b096d3b8889sha512: f7cba2158f856cd87c22a7df9c6c74f8805d234f689bcbb3e75d6182b710df954c6e49a6b94786458150a2099061bcdbcba389cbc11e694a5debd0d3dc58f240ssdeep: 6144:LvCyjXhd1mialK+qoNr8PxtZE6x5v+k6fYn:bjXhd8ZlKOrMZE6x5b6ftype: PE32 executable (GUI) Intel 80386 Mono/.Net assembly, for MS Windows

Version Info:

Translation: 0x0000 0x04b0LegalCopyright: Assembly Version: 0.0.0.0InternalName: WindowsExpressWorld.ScrFileVersion: 0.0.0.0ProductVersion: 0.0.0.0FileDescription: OriginalFilename: WindowsExpressWorld.Scr

Trojan-Ransom.Win32.Petr.a also known as:

K7AntiVirus Trojan ( 0051c2441 )
Elastic malicious (high confidence)
DrWeb Win32.HLLW.Autoruner.25074
Cynet Malicious (score: 99)
CAT-QuickHeal Ransom.Petya.S5
ALYac Gen:Variant.MSIL.Bladabindi.6
Cylance Unsafe
Sangfor Trojan.Win32.Save.a
CrowdStrike win/malicious_confidence_80% (D)
Alibaba Ransom:MSIL/Binder.8ace6885
K7GW Trojan ( 0051c2441 )
Cybereason malicious.85eb43
Baidu MSIL.Trojan-Dropper.Binder.a
Cyren W32/MSIL_Binder.A.gen!Eldorado
Symantec ML.Attribute.HighConfidence
ESET-NOD32 a variant of MSIL/TrojanDropper.Binder.CA
APEX Malicious
Avast Other:Malware-gen [Trj]
ClamAV Win.Trojan.Petya-5637914-0
Kaspersky Trojan-Ransom.Win32.Petr.a
BitDefender Gen:Variant.MSIL.Bladabindi.6
NANO-Antivirus Trojan.Win32.Agent.dzsrep
MicroWorld-eScan Gen:Variant.MSIL.Bladabindi.6
Tencent Win32.Trojan.Petr.Pdby
Ad-Aware Gen:Variant.MSIL.Bladabindi.6
Sophos ML/PE-A + Troj/dnsauce-B
Comodo TrojWare.MSIL.TrojanDropper.Binder.CA@7nerge
BitDefenderTheta Gen:NN.ZemsilF.34686.rm0@aml96te
TrendMicro TROJ_BINDER.SMA
McAfee-GW-Edition BackDoor-FBHS!B07678285EB4
FireEye Generic.mg.b07678285eb434c1
Emsisoft Gen:Variant.MSIL.Bladabindi.6 (B)
SentinelOne Static AI – Malicious PE
Jiangmin Trojan/JboxGeneric.fgn
Avira BDS/Bladabindi.ajoqj
eGambit Unsafe.AI_Score_99%
Microsoft Backdoor:MSIL/Bladabindi
ZoneAlarm HEUR:Trojan.Win32.Generic
GData Gen:Variant.MSIL.Bladabindi.6
McAfee BackDoor-FBHS!B07678285EB4
MAX malware (ai score=83)
VBA32 Trojan.Ransom
Malwarebytes Backdoor.Bot.MSIL
Panda Trj/GdSda.A
TrendMicro-HouseCall TROJ_BINDER.SMA
Rising Ransom.Petr!1.B334 (CLOUD)
Ikarus Trojan-Dropper.MSIL
Fortinet MSIL/Dropper_Binder.BS!tr
AVG Other:Malware-gen [Trj]
Paloalto generic.ml

How to remove Trojan-Ransom.Win32.Petr.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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