MSIL/Filecoder.APU

Spectating the MSIL/Filecoder.APU detection usually means that your PC is in big danger. This virus can correctly be identified as ransomware – type of malware which ciphers your files and forces you to pay for their decryption. Deleteing it requires some specific steps that must be done as soon as possible.

MSIL/Filecoder.APU detection is a malware detection you can spectate in your computer. It frequently appears after the provoking activities on your computer – opening the suspicious email messages, clicking the advertisement in the Web or installing the program from unreliable sources. From the moment it shows up, you have a short time to take action before it starts its malicious activity. And be sure – it is far better not to await these destructive actions.

What is MSIL/Filecoder.APU virus?

MSIL/Filecoder.APU Summary

Summarizingly, MSIL/Filecoder.APU virus actions in the infected system are next:

  • Dynamic (imported) function loading detected;
  • Authenticode signature is invalid;
  • Anomalous .NET characteristics;
  • CAPE detected the Chaos malware family;
  • Encrypting the files located on the victim’s drives — so the victim cannot use these files;
  • Blocking the launching of .exe files of security tools
  • Blocking the launching of installation files of anti-virus programs

Ransomware has been a nightmare for the last 4 years. It is challenging to imagine a more hazardous virus for both individual users and businesses. The algorithms used in MSIL/Filecoder.APU (generally, RHA-1028 or AES-256) are not hackable – with minor exclusions. To hack it with a brute force, you need to have a lot more time than our galaxy already exists, and possibly will exist. However, that virus does not do all these terrible things instantly – it may require up to several hours to cipher all of your documents. Thus, seeing the MSIL/Filecoder.APU detection is a clear signal that you should begin the removal procedure.

Where did I get the MSIL/Filecoder.APU?

General ways of MSIL/Filecoder.APU spreading are basic for all other ransomware examples. Those are one-day landing web pages where users are offered to download the free program, so-called bait e-mails and hacktools. Bait emails are a quite modern method in malware distribution – you get the email that mimics some routine notifications about deliveries or bank service conditions modifications. Inside of the email, there is an infected MS Office file, or a link which leads to the exploit landing site.

Malicious email spam

Malicious email message. This one tricks you to open the phishing website.

Preventing it looks pretty simple, but still demands a lot of awareness. Malware can hide in different places, and it is much better to prevent it even before it gets into your computer than to trust in an anti-malware program. Common cybersecurity knowledge is just an essential item in the modern-day world, even if your relationship with a computer stays on YouTube videos. That can save you a great deal of time and money which you would spend while trying to find a fix guide.

MSIL/Filecoder.APU malware technical details

File Info:

name: C5005E5BD3804B5375CF.mlwpath: /opt/CAPEv2/storage/binaries/3e45ee14467ed9ed044c0d02e4030e693a304b85b4e5f56dc1a5f3a6357a98facrc32: F273A6A2md5: c5005e5bd3804b5375cfcf6d34d3a700sha1: fde8ec38628b314ae10662de99f7d9d116355662sha256: 3e45ee14467ed9ed044c0d02e4030e693a304b85b4e5f56dc1a5f3a6357a98fasha512: 1077100ff01dcf73768f93101dd7b1b56cfad6bda8396b7b5eb8feb288299244f8d7f788c3b139bb5c7a6ed5e269d5e59cf2cc791e37c68da0e64eff25806da9ssdeep: 384:M0JORJNKLK87gh71pYS2aNnI+OVs918/H0b5LWl:UJH8qD2Ot96UbFQtype: PE32 executable (GUI) Intel 80386, for MS Windowstlsh: T1F9C2D608A7FA4639F6FB6F3899B262015775B916EC29C74D0D8D509E0C33B9C8C61B63sha3_384: 4a43a82ed3e406c0e43e5f6a508585660359c0e07831c510c45784683d9c289e5323ef0d3ebffd3fd53b51d1a2f5d5b0ep_bytes: ff250020400000000000000000000000timestamp: 2022-06-06 18:58:49

Version Info:

Translation: 0x0000 0x04b0FileDescription: FileVersion: 0.0.0.0InternalName: test.exeLegalCopyright: OriginalFilename: test.exeProductVersion: 0.0.0.0Assembly Version: 0.0.0.0

MSIL/Filecoder.APU also known as:

Bkav W32.AIDetectNet.01
ClamAV Win.Ransomware.Hydracrypt-9878672-0
CAT-QuickHeal Trojan.MsilFC.S23210140
McAfee Ransomware-FTD!C5005E5BD380
Malwarebytes Ransom.Chaos
Sangfor Trojan.Win32.Save.a
Cyren W32/Azorult.D.gen!Eldorado
Elastic malicious (high confidence)
ESET-NOD32 a variant of MSIL/Filecoder.APU
APEX Malicious
Avast Win32:RansomX-gen [Ransom]
Cynet Malicious (score: 100)
Kaspersky HEUR:Trojan-Ransom.Win32.Generic
BitDefender IL:Trojan.MSILZilla.5554
MicroWorld-eScan IL:Trojan.MSILZilla.5554
Ad-Aware IL:Trojan.MSILZilla.5554
Sophos ML/PE-A
F-Secure Heuristic.HEUR/AGEN.1250041
DrWeb Trojan.ClipBankerNET.7
TrendMicro Ransom.MSIL.CHAOS.SMYPBHET
McAfee-GW-Edition BehavesLike.Win32.Trojan.mm
Trapmine malicious.moderate.ml.score
FireEye Generic.mg.c5005e5bd3804b53
Emsisoft IL:Trojan.MSILZilla.5554 (B)
SentinelOne Static AI – Malicious PE
GData IL:Trojan.MSILZilla.5554
Avira HEUR/AGEN.1250041
Arcabit IL:Trojan.MSILZilla.D15B2
Microsoft Ransom:MSIL/Cryptolocker.RW!MTB
AhnLab-V3 Ransomware/Win.FTD.C4597900
Acronis suspicious
ALYac IL:Trojan.MSILZilla.5554
MAX malware (ai score=83)
Cylance Unsafe
Rising Ransom.Destructor!1.B060 (CLASSIC)
Ikarus Trojan-Ransom.FileCrypter
MaxSecure Trojan.Malware.300983.susgen
Fortinet MSIL/ClipBanker.MZ!tr.ransom
BitDefenderTheta Gen:NN.ZemsilF.34712.bm0@a0vQ9om
AVG Win32:RansomX-gen [Ransom]
Cybereason malicious.bd3804

How to remove MSIL/Filecoder.APU?

About the author

Robert Bailey

Security engineer focused on malware behavior, removal workflows, and Windows hardening. Robert reviews threat articles for practical accuracy, checking detection names, symptoms, and cleanup steps before publication.

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