Categories: RansomTrojan

How to remove “Trojan-Ransom.Win32.Cryptodef.bvj”?

The Trojan-Ransom.Win32.Cryptodef.bvj 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.Cryptodef.bvj virus can do?

  • Yara rule detections observed from a process memory dump/dropped files/CAPE
  • Creates RWX memory
  • Possible date expiration check, exits too soon after checking local time
  • Anomalous file deletion behavior detected (10+)
  • Dynamic (imported) function loading detected
  • Reads data out of its own binary image
  • A process created a hidden window
  • Drops a binary and executes it
  • Unconventionial language used in binary resources: Portuguese (Brazilian)
  • The binary likely contains encrypted or compressed data.
  • Authenticode signature is invalid
  • Created a process from a suspicious location
  • Anomalous binary characteristics

How to determine Trojan-Ransom.Win32.Cryptodef.bvj?


File Info:

name: E643990606136F76DD3F.mlwpath: /opt/CAPEv2/storage/binaries/d76dd274ae1e0c0cb5f3ef43f0b4908280598846aa73bbcdbe54265017439910crc32: F8D8459Emd5: e643990606136f76dd3fbc5faa6b2072sha1: e7769b2c99db2ea0d10ceabce4822113b6984e51sha256: d76dd274ae1e0c0cb5f3ef43f0b4908280598846aa73bbcdbe54265017439910sha512: 0bbbacdfd525c481963cffbd37c2823e9c2f274075f234a11de1aafce8468b03e395d11862fb50c8a49054f7fd44b6ebefd5c37be6a2615a2a8dfdb353f09c2dssdeep: 384:N9xdUqG1E/ew1Zz/aH59N1Drb+E1H63Vs17o/Wsd:PxdIm/hZGHrqE1H63A7o/Wstype: PE32 executable (GUI) Intel 80386, for MS Windowstlsh: T144A2C4B773D24CF5F6A307B0A876624BA49074D153D236FF4A1E9E104902AC6EAF12C9sha3_384: 852875f5f924bd70d48e6315ed891815c1f0da5a9ed922a610d3a215da98728ed36adbd1f8bfd6c1e3e1a6506191a2adep_bytes: 558bec83ec4456ff150c2040008bf08atimestamp: 1992-06-01 18:44:46

Version Info:

0: [No Data]

Trojan-Ransom.Win32.Cryptodef.bvj also known as:

Bkav W32.FamVT.GeND.Trojan
Elastic malicious (high confidence)
Cynet Malicious (score: 100)
FireEye Generic.mg.e643990606136f76
CAT-QuickHeal TrojanDownloader.Upatre.AA4
ALYac Trojan.GenericKD.1796217
Cylance Unsafe
Zillya Trojan.Cryptodef.Win32.125
K7AntiVirus Trojan-Downloader ( 0048f6391 )
BitDefender Trojan.GenericKD.1796217
K7GW Trojan-Downloader ( 0048f6391 )
Cybereason malicious.606136
Baidu Win32.Trojan-Downloader.Waski.a
VirIT Trojan.Win32.Generic.CNGO
Cyren W32/Trojan.INCI-3183
Symantec Ransom.Cryptodefense
ESET-NOD32 Win32/TrojanDownloader.Waski.A
APEX Malicious
ClamAV Win.Downloader.Upatre-5744092-0
Kaspersky Trojan-Ransom.Win32.Cryptodef.bvj
NANO-Antivirus Trojan.Win32.Panda.ddsitr
MicroWorld-eScan Trojan.GenericKD.1796217
Rising Downloader.Waski!1.A489 (RDMK:cmRtazoyKcjAlwSwiYxN0tQLP2n9)
Sophos ML/PE-A + Troj/Ransom-AKD
Comodo TrojWare.Win32.TrojanDownloader.Waski.DA@5iyglc
DrWeb Trojan.PWS.Panda.7591
VIPRE Trojan.Win32.Upatre.buu (v)
TrendMicro TROJ_UPATRE.SMN6
McAfee-GW-Edition BehavesLike.Win32.Downloader.mm
Emsisoft Trojan.GenericKD.1796217 (B)
SentinelOne Static AI – Malicious PE
Jiangmin Trojan/Cryptodef.ag
Avira TR/ATRAPS.A.1656
MAX malware (ai score=80)
Antiy-AVL Trojan/Win32.SGeneric
Microsoft Trojan:Win32/Zbot.svfs!MTB
SUPERAntiSpyware Trojan.Agent/Gen-KD
ZoneAlarm Trojan-Ransom.Win32.Cryptodef.bvj
GData Win32.Trojan-Downloader.Upatre.BK
AhnLab-V3 Dropper/Win32.Necurs.R115439
BitDefenderTheta Gen:NN.ZexaF.34182.bqX@aiLlmVgO
VBA32 BScope.TrojanPSW.Panda
Malwarebytes Malware.AI.2456335957
Panda Trj/Genetic.gen
TrendMicro-HouseCall TROJ_UPATRE.SMN6
Tencent Trojan.Win32.Downloader.bvj
Yandex Trojan.Cryptodef!/wlz6YFVXN4
Ikarus Trojan.Win32.Bublik
MaxSecure Trojan.Upatre.Gen
Fortinet W32/Waski.A!tr.dldr
AVG Win32:Trojan-gen
Avast Win32:Trojan-gen
CrowdStrike win/malicious_confidence_100% (D)

How to remove Trojan-Ransom.Win32.Cryptodef.bvj?

  • 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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