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The Daily Insight

MSIL/Filecoder.APU

Author

Olivia Norman

Updated on February 22, 2026

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 is ransomware-type malware. It searches for the files on your computer, encrypts it, and then asks you to pay the ransom for receiving the decryption key. Besides making your files locked, this virus additionally does a lot of damage to your system. It modifies the networking setups in order to stop you from checking out the elimination tutorials or downloading the antivirus. Sometimes, MSIL/Filecoder.APU can also stop the setup of anti-malware programs.

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:

BkavW32.AIDetectNet.01
ClamAVWin.Ransomware.Hydracrypt-9878672-0
CAT-QuickHealTrojan.MsilFC.S23210140
McAfeeRansomware-FTD!C5005E5BD380
MalwarebytesRansom.Chaos
SangforTrojan.Win32.Save.a
CyrenW32/Azorult.D.gen!Eldorado
Elasticmalicious (high confidence)
ESET-NOD32a variant of MSIL/Filecoder.APU
APEXMalicious
AvastWin32:RansomX-gen [Ransom]
CynetMalicious (score: 100)
KasperskyHEUR:Trojan-Ransom.Win32.Generic
BitDefenderIL:Trojan.MSILZilla.5554
MicroWorld-eScanIL:Trojan.MSILZilla.5554
Ad-AwareIL:Trojan.MSILZilla.5554
SophosML/PE-A
F-Secure
DrWebTrojan.ClipBankerNET.7
TrendMicroRansom.MSIL.CHAOS.SMYPBHET
McAfee-GW-EditionBehavesLike.Win32.Trojan.mm
Trapminemalicious.moderate.ml.score
FireEyeGeneric.mg.c5005e5bd3804b53
EmsisoftIL:Trojan.MSILZilla.5554 (B)
SentinelOneStatic AI – Malicious PE
GDataIL:Trojan.MSILZilla.5554
AviraHEUR/AGEN.1250041
ArcabitIL:Trojan.MSILZilla.D15B2
MicrosoftRansom:MSIL/Cryptolocker.RW!MTB
AhnLab-V3Ransomware/Win.FTD.C4597900
Acronissuspicious
ALYacIL:Trojan.MSILZilla.5554
MAXmalware (ai score=83)
CylanceUnsafe
RisingRansom.Destructor!1.B060 (CLASSIC)
IkarusTrojan-Ransom.FileCrypter
MaxSecureTrojan.Malware.300983.susgen
FortinetMSIL/ClipBanker.MZ!tr.ransom
BitDefenderThetaGen:NN.ZemsilF.34712.bm0@a0vQ9om
AVGWin32:RansomX-gen [Ransom]
Cybereasonmalicious.bd3804

How to remove MSIL/Filecoder.APU?

MSIL/Filecoder.APU malware is extremely difficult to eliminate by hand. It stores its files in multiple places throughout the disk, and can get back itself from one of the elements. Moreover, a range of changes in the registry, networking configurations and Group Policies are fairly hard to find and revert to the initial. It is much better to use a specific app – exactly, an anti-malware program. GridinSoft Anti-Malware will definitely fit the most ideal for malware elimination reasons.

Why GridinSoft Anti-Malware? It is pretty lightweight and has its databases updated nearly every hour. Furthermore, it does not have such problems and vulnerabilities as Microsoft Defender does. The combination of these facts makes GridinSoft Anti-Malware perfect for taking out malware of any form.

Download GridinSoft Anti-Malware

Remove the viruses with GridinSoft Anti-Malware

  • Download and install GridinSoft Anti-Malware. After the installation, you will be offered to perform the Standard Scan. Approve this action.
  • Gridinsoft Anti-Malware during the scan process
  • Standard scan checks the logical disk where the system files are stored, together with the files of programs you have already installed. The scan lasts up to 6 minutes.
  • GridinSoft Anti-Malware scan results
  • When the scan is over, you may choose the action for each detected virus. For all files of [SHORT_NAME] the default option is “Delete”. Press “Apply” to finish the malware removal.
  • GridinSoft Anti-Malware - After Cleaning