Categories: Malware

MSIL/Filecoder.AFL removal instruction

The MSIL/Filecoder.AFL 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 MSIL/Filecoder.AFL virus can do?

  • Executable code extraction
  • Creates RWX memory
  • A process attempted to delay the analysis task.
  • The binary likely contains encrypted or compressed data.
  • Installs itself for autorun at Windows startup
  • Checks the version of Bios, possibly for anti-virtualization
  • Checks the CPU name from registry, possibly for anti-virtualization
  • Creates a copy of itself
  • Appends a known CryLocker ransomware file extension to files that have been encrypted
  • Collects information to fingerprint the system

How to determine MSIL/Filecoder.AFL?


File Info:

crc32: 985EF7BDmd5: ac7fed80ccbf3a46db206d88b51a46c0name: AC7FED80CCBF3A46DB206D88B51A46C0.mlwsha1: 5c1ec87c838b652de02f65d748e55e52a2812c73sha256: 1b42b1c3e65e9057a687e6057e60c2aec93e6fb66dab6e68bdc24de605fbf7a9sha512: 9f4461f507fd1424f5da8d2dfe710574949e504e4cf010cda8d9011a4b95a0c4c3ac18c4abe901fa82c50c5445640afaf3085f57c4bfb7704dfa007aba3721d7ssdeep: 3072:qk8bx9YtlSHPOpRZkbISJhXgRo2o41q8lh8Fuz+WSMzbrsfyb50E3QBSfUqK1K3:AK+4RJq8wFu1Cyd0E3QMfhqK3chtype: PE32 executable (GUI) Intel 80386 Mono/.Net assembly, for MS Windows

Version Info:

0: [No Data]

MSIL/Filecoder.AFL also known as:

Elastic malicious (high confidence)
DrWeb Trojan.MulDrop16.31173
CAT-QuickHeal Trojan.YakbeexMSIL.ZZ4
Cylance Unsafe
Sangfor Trojan.Win32.Save.a
CrowdStrike win/malicious_confidence_90% (D)
BitDefender Gen:Heur.Ransom.HiddenTears.1
Cybereason malicious.0ccbf3
Symantec ML.Attribute.HighConfidence
ESET-NOD32 a variant of MSIL/Filecoder.AFL
APEX Malicious
Cynet Malicious (score: 100)
Kaspersky HEUR:Trojan-Ransom.Win32.Generic
MicroWorld-eScan Gen:Heur.Ransom.HiddenTears.1
Ad-Aware Gen:Heur.Ransom.HiddenTears.1
Sophos ML/PE-A
F-Secure Trojan.TR/Dropper.Gen
BitDefenderTheta Gen:NN.ZemsilF.34678.nmW@a4H!JCj
McAfee-GW-Edition BehavesLike.Win32.Generic.dc
FireEye Generic.mg.ac7fed80ccbf3a46
Emsisoft Gen:Heur.Ransom.HiddenTears.1 (B)
SentinelOne Static AI – Malicious PE
Avira TR/Dropper.Gen
Microsoft Ransom:MSIL/NoCry.AS!MTB
Arcabit Trojan.Ransom.HiddenTears.1
GData Gen:Heur.Ransom.HiddenTears.1
AhnLab-V3 Trojan/Win32.Dynamer.C4381802
Acronis suspicious
MAX malware (ai score=82)
Malwarebytes MachineLearning/Anomalous.95%
Fortinet MSIL/Filecoder.TA!tr
Qihoo-360 HEUR/QVM03.0.AC87.Malware.Gen

How to remove MSIL/Filecoder.AFL?

  • 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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