Categories: Trojan

Trojan-Dropper.MSIL.Blocker.vf removal guide

The Trojan-Dropper.MSIL.Blocker.vf 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-Dropper.MSIL.Blocker.vf virus can do?

  • SetUnhandledExceptionFilter detected (possible anti-debug)
  • Creates RWX memory
  • Guard pages use detected – possible anti-debugging.
  • Dynamic (imported) function loading detected
  • CAPE extracted potentially suspicious content
  • The binary likely contains encrypted or compressed data.
  • Authenticode signature is invalid

How to determine Trojan-Dropper.MSIL.Blocker.vf?


File Info:

name: F9A539432FEF72D55700.mlwpath: /opt/CAPEv2/storage/binaries/b4a67d949d272ccf04c157ca0f3a1a74e7151eba5d0149ff850f4de86b2c2407crc32: 1BA5A934md5: f9a539432fef72d557000ffeb09a1ee6sha1: c126dcef80fca1cc99e39b6b1e86b9263acb8dfdsha256: b4a67d949d272ccf04c157ca0f3a1a74e7151eba5d0149ff850f4de86b2c2407sha512: 75c5fe8d5434f3daa448c4ba2ad0bc8af198ef8ee5baafda642234c7f88119043401a88800b649da2d7724118d8ffc41754bbae9fb7f3ba48543fda42fa07955ssdeep: 6144:k5zQPzpL7kjzCnbC77bb+wvMY0a7WTk2bcAauYbIVblhyRJWrD6n2H:k5ezpL7kjub0+w/3aTH4AUbIVblhoUKtype: PE32 executable (GUI) Intel 80386, for MS Windowstlsh: T1A5D4FA12287195D7EB3942F6F416857532EF9AD7E28F289E13DCB33604613138A1ED2Esha3_384: 8d3f45c8234a7e6aa9708e3417d9b3dea8c595270bd4bfeddf6d3ca4476c037aa26dbea41ef7d5452d16a5f609f69f2fep_bytes: ff25007144000000000000000000d470timestamp: 2014-09-15 12:23:23

Version Info:

Translation: 0x0000 0x04b0FileDescription: マルウェア緊急対策のお知らせ.doc docFileVersion: 1.0.0.0InternalName: SampleMalware.exeLegalCopyright: OriginalFilename: SampleMalware.exeProductName: Microsoft WordProductVersion: 1.0.0.0Assembly Version: 1.0.0.0

Trojan-Dropper.MSIL.Blocker.vf also known as:

Lionic Trojan.MSIL.Blocker.b!c
Sangfor Trojan.MSIL.Blocker.vf
Alibaba TrojanDropper:MSIL/Blocker.d3e3b828
APEX Malicious
Kaspersky Trojan-Dropper.MSIL.Blocker.vf
Tencent Msil.Trojan-dropper.Blocker.Efkn
McAfee-GW-Edition Artemis
Jiangmin TrojanDownloader.MSIL.gnh
Microsoft Trojan:MSIL/Skeeyah.A!MTB
McAfee Artemis!F9A539432FEF
VBA32 TScope.Trojan.MSIL
Cylance Unsafe

How to remove Trojan-Dropper.MSIL.Blocker.vf?

  • 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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