Categories: RansomTrojan

About “Trojan-Ransom.Win32.Blocker.wzwl” infection

The Trojan-Ransom.Win32.Blocker.wzwl 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.Blocker.wzwl virus can do?

  • SetUnhandledExceptionFilter detected (possible anti-debug)
  • Creates RWX memory
  • 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
  • The binary contains an unknown PE section name indicative of packing
  • The binary likely contains encrypted or compressed data.
  • Authenticode signature is invalid
  • Uses Windows utilities for basic functionality
  • Behavioural detection: Injection (Process Hollowing)
  • Executed a process and injected code into it, probably while unpacking
  • Behavioural detection: Injection (inter-process)
  • Created a process from a suspicious location
  • Installs itself for autorun at Windows startup
  • Anomalous binary characteristics

How to determine Trojan-Ransom.Win32.Blocker.wzwl?


File Info:

name: B1A731AA21915D4FD405.mlwpath: /opt/CAPEv2/storage/binaries/8c4e3c0be6ac697c6c0993ec427a126b7316dbc2cd2f1e86850511ca90f5e215crc32: 611630A1md5: b1a731aa21915d4fd405b4e3403c528fsha1: c7f1b675a578f32609cffe3d706553ad5ba71b66sha256: 8c4e3c0be6ac697c6c0993ec427a126b7316dbc2cd2f1e86850511ca90f5e215sha512: 035ec357fefcfe3052380ee01849f3485301f3fcbd6c317f4d8db93b46927ef2692504c5508b71c86710cc344ee4fc01a2e0c9d422ca34e4a4b99f86bd3287b9ssdeep: 196608:0GazhGazg7DeGazhGazg7DeGazhGazg7DeGazhGazg7DR:EZg7CZg7CZg7CZg7ltype: PE32 executable (GUI) Intel 80386, for MS Windowstlsh: T19E86F13AF6D08437D1236E7DCC5B9794A835BEE02D28508A7BE91D4C8F39B9135262D3sha3_384: eb0444b47a4aaaece661dcac4ef389daf244bed06a02e4c919b283899b106388c5506e163fbdbc6e3b9b44fdc8868f14ep_bytes: 55545d906a2890596a006a004975f953timestamp: 1992-06-19 22:22:17

Version Info:

0: [No Data]

Trojan-Ransom.Win32.Blocker.wzwl also known as:

Bkav W32.AIDetect.malware1
Lionic Trojan.Win32.Androm.m!c
Elastic malicious (high confidence)
MicroWorld-eScan Gen:Variant.Symmi.34741
FireEye Generic.mg.b1a731aa21915d4f
ALYac Gen:Variant.Symmi.34741
Cylance Unsafe
Sangfor Trojan.Win32.Save.a
K7AntiVirus Trojan ( 00548e051 )
BitDefender Gen:Variant.Symmi.34741
K7GW Trojan ( 00548e051 )
Cybereason malicious.a21915
BitDefenderTheta AI:Packer.9896AD8521
Cyren W32/Injector.AOF.gen!Eldorado
Symantec ML.Attribute.HighConfidence
ESET-NOD32 a variant of Win32/Injector.AHHO
TrendMicro-HouseCall TROJ_GEN.R002C0DAV22
ClamAV Win.Trojan.Mbrlock-9779767-0
Kaspersky Trojan-Ransom.Win32.Blocker.wzwl
Alibaba Trojan:Win32/Starter.ali1001008
NANO-Antivirus Trojan.Win32.Dapato.bsjzfg
ViRobot Trojan.Win32.Z.Injector.8316928.GVK
Rising Trojan.Injector!1.DA56 (CLOUD)
Emsisoft Gen:Variant.Symmi.34741 (B)
Comodo TrojWare.Win32.Injector.HO@82j6jo
DrWeb Trojan.DownLoader6.7779
TrendMicro TROJ_GEN.R002C0DAV22
McAfee-GW-Edition BehavesLike.Win32.Generic.wc
Sophos ML/PE-A + Troj/Agent-BFYB
APEX Malicious
Jiangmin Trojan.Blocker.tzz
Avira TR/Crypt.XPACK.Gen
MAX malware (ai score=86)
Antiy-AVL Trojan/Generic.ASBOL.C5EF
Microsoft Trojan:Win32/Injector.INK!MTB
GData Win32.Trojan.PSE.61HB7B
SentinelOne Static AI – Malicious PE
AhnLab-V3 Dropper/Win32.Dapato.R83155
McAfee GenericRXIP-BJ!B1A731AA2191
TACHYON Backdoor/W32.Androm.8316928
VBA32 Trojan.Downloader
Malwarebytes Trojan.Dropper
Panda Trj/Genetic.gen
Tencent Trojan.Win32.Blocker.zg
Yandex Trojan.Injector!fDK0FiXf8Po
Ikarus Trojan-Ransom.Blocker
MaxSecure Trojan.Malware.137083641.susgen
Fortinet W32/Injector.AHHO!tr
AVG Win32:MBRlock-DV [Trj]
Avast Win32:MBRlock-DV [Trj]
CrowdStrike win/malicious_confidence_90% (W)

How to remove Trojan-Ransom.Win32.Blocker.wzwl?

  • 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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