Categories: Ransom

Should I remove “Ransom:Win32/MegaCortex.A”?

The Ransom:Win32/MegaCortex.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 Ransom:Win32/MegaCortex.A virus can do?

  • SetUnhandledExceptionFilter detected (possible anti-debug)
  • Sample contains Overlay data
  • Dynamic (imported) function loading detected
  • The binary likely contains encrypted or compressed data.
  • Authenticode signature is invalid
  • Anomalous binary characteristics

How to determine Ransom:Win32/MegaCortex.A?


File Info:

name: FD3EBC8DC312C876FF04.mlwpath: /opt/CAPEv2/storage/binaries/d207a80adb5311737b6d541122aeda0a13f0353334b836af3412340d3730c9ebcrc32: B0868B97md5: fd3ebc8dc312c876ff048502e79ff8b0sha1: 39169cb10fffe6b8a599f2d43e64254bd7648cf9sha256: d207a80adb5311737b6d541122aeda0a13f0353334b836af3412340d3730c9ebsha512: 059f17edace98bc6f0cd4ca70fd705be571c843846bddfd35320f852c2ba78f04ac3e6a90c4d44fa81d3174d1653622e8d212b0ee0f344f6b8e8f2ceb26df617ssdeep: 24576:QF78RE7pJSKBUUoyusymwzLAPbUxpKZrLDF2w:s4y7+C3uIwoPbqurLntype: PE32 executable (GUI) Intel 80386, for MS Windowstlsh: T1E81501017580C132E5F20832557CEBAB893D7D341B755EDBA7E41E2ACE740D2AB32E66sha3_384: b24c8c2a33825892c78763943d33fcc926b80d5e08bf4dc9992ebc01bfe22e5dbe82ce2beb68533be20c7fce171cdc7cep_bytes: e8f2070000e97afeffffcccccccccccctimestamp: 2019-04-25 21:08:38

Version Info:

0: [No Data]

Ransom:Win32/MegaCortex.A also known as:

Bkav W32.AIDetect.malware2
MicroWorld-eScan Trojan.Ransom.CBH
FireEye Generic.mg.fd3ebc8dc312c876
CAT-QuickHeal Trojan.Mauvaise.SL1
McAfee Trojan-FQUE!FD3EBC8DC312
Cylance Unsafe
VIPRE Trojan.Ransom.CBH
K7AntiVirus Riskware ( 0040eff71 )
K7GW Riskware ( 0040eff71 )
Cybereason malicious.dc312c
BitDefenderTheta Gen:NN.ZexaF.34786.2uX@aqh8kcfi
VirIT Trojan.Win32.DownLoad4.SAA
Symantec ML.Attribute.HighConfidence
Elastic malicious (high confidence)
ESET-NOD32 Win32/Filecoder.MegaCortex.B
TrendMicro-HouseCall Ransom.Win32.CORTEX.SM
ClamAV Win.Ransomware.Megacortex-6978705-1
Kaspersky VHO:Backdoor.Win32.Agent.gen
BitDefender Trojan.Ransom.CBH
Avast Win32:RansomX-gen [Ransom]
Ad-Aware Trojan.Ransom.CBH
Emsisoft Trojan.Ransom.CBH (B)
Zillya Trojan.Agent.Win32.1096439
TrendMicro Ransom.Win32.CORTEX.SM
McAfee-GW-Edition BehavesLike.Win32.Generic.cc
SentinelOne Static AI – Suspicious PE
Sophos Troj/Ransom-FJQ
APEX Malicious
GData Trojan.Ransom.CBH
Jiangmin Backdoor.Agent.fbd
Avira TR/Agent.aglg
MAX malware (ai score=84)
Antiy-AVL Trojan/Generic.ASMalwS.592C
ZoneAlarm VHO:Backdoor.Win32.Agent.gen
Microsoft Ransom:Win32/MegaCortex.A
Cynet Malicious (score: 99)
AhnLab-V3 Malware/Win32.Ransom.C3209762
VBA32 Trojan.Download
ALYac Trojan.Ransom.CBH
Malwarebytes Malware.AI.2696855620
Rising Ransom.MegaCortex!1.B5BB (CLASSIC)
Yandex Trojan.GenAsa!QlxkxyPq0Bk
Ikarus Trojan-Ransom.MegaCortex
AVG Win32:RansomX-gen [Ransom]

How to remove Ransom:Win32/MegaCortex.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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