Categories: RansomTrojan

What is “Trojan-Ransom.Win32.Blocker.wwsv”?

The Trojan-Ransom.Win32.Blocker.wwsv 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.wwsv 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.wwsv?


File Info:

name: 1F435E4C1B56E5E7A952.mlwpath: /opt/CAPEv2/storage/binaries/92f78cc57384b7f934eee36e62c967d4ed2aa28972aab0406cc450cbd7977ecacrc32: F3950E5Dmd5: 1f435e4c1b56e5e7a9526b7d23d4d658sha1: 2b237626893bf0d2fddc83de7b3e683c541d5106sha256: 92f78cc57384b7f934eee36e62c967d4ed2aa28972aab0406cc450cbd7977ecasha512: 5fbba04aa9dc403a2cdbb7be7a698a5532fd53cd53a3d2fccee3daa9bbe08240d689442df5a8af9298452bdd3a16e9c31c7181ba9429ea63342e5e8d709f0517ssdeep: 393216:/eg7peg7peg7peg7peg7peg7peg7peg7l:b5555555Rtype: PE32 executable (GUI) Intel 80386, for MS Windowstlsh: T140F6F13AF6D08437D1236E7DCC5B9794A835BEE02D28508A7BE91D4C8F39B9135262D3sha3_384: 1888d7500bda83ccb8f9a4fe0467ec3eb4b421fcb5a0167572a4c312a75fd60f3f126a8c0171e7d920342dd147a49e44ep_bytes: 55545d906a2890596a006a004975f953timestamp: 1992-06-19 22:22:17

Version Info:

0: [No Data]

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

Elastic malicious (high confidence)
MicroWorld-eScan Gen:Variant.Symmi.34741
FireEye Generic.mg.1f435e4c1b56e5e7
CAT-QuickHeal Trojan.WacatacPMF.S16539689
McAfee GenericRXIP-BJ!1F435E4C1B56
Cylance Unsafe
Sangfor Virus.Win32.Save.a
K7AntiVirus Trojan ( 00548e051 )
Alibaba Trojan:Win32/Starter.ali1001008
K7GW Trojan ( 00548e051 )
Cybereason malicious.c1b56e
Cyren W32/Injector.AOF.gen!Eldorado
Symantec ML.Attribute.HighConfidence
ESET-NOD32 a variant of Win32/Injector.AHHO
APEX Malicious
Avast Win32:MBRlock-DV [Trj]
ClamAV Win.Trojan.Mbrlock-9779767-0
Kaspersky Trojan-Ransom.Win32.Blocker.wwsv
BitDefender Gen:Variant.Symmi.34741
NANO-Antivirus Trojan.Win32.Dapato.bsjzfg
Tencent Trojan.Win32.Blocker.zg
Ad-Aware Gen:Variant.Symmi.34741
TACHYON Backdoor/W32.Androm.16633856
Emsisoft Gen:Variant.Symmi.34741 (B)
Comodo TrojWare.Win32.Injector.HO@82j6jo
DrWeb Trojan.DownLoader6.7779
TrendMicro TROJ_GEN.R002C0DAS22
McAfee-GW-Edition BehavesLike.Win32.Generic.wc
Sophos ML/PE-A + Troj/Agent-BFYB
GData Win32.Trojan.PSE.61HB7B
Jiangmin Trojan.Blocker.tzz
Avira TR/Crypt.XPACK.Gen
Antiy-AVL Trojan/Generic.ASBOL.C5EF
Microsoft Trojan:Win32/Injector.INK!MTB
Cynet Malicious (score: 100)
AhnLab-V3 Dropper/Win32.Dapato.R83155
Acronis suspicious
BitDefenderTheta Gen:NN.ZelphiF.34182.@JZ@aCG1cho
ALYac Gen:Variant.Symmi.34741
MAX malware (ai score=82)
VBA32 Trojan.Downloader
Malwarebytes Trojan.Dropper
TrendMicro-HouseCall TROJ_GEN.R002C0DAS22
Rising Trojan.Injector!1.DA56 (CLOUD)
Yandex Trojan.Injector!fDK0FiXf8Po
SentinelOne Static AI – Malicious PE
Fortinet W32/Injector.AHHO!tr
AVG Win32:MBRlock-DV [Trj]
Panda Trj/CI.A
CrowdStrike win/malicious_confidence_90% (W)

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

  • 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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