Win32/Filecoder.OAU

What is the Win32:Evo-gen [Trj] virus?
Written by Robert Bailey

What is Win32/Filecoder.OAU infection?

In this article you will discover concerning the meaning of Win32/Filecoder.OAU and its adverse influence on your computer. Such ransomware are a kind of malware that is specified by online scams to demand paying the ransom money by a victim.

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In the majority of the cases, Win32/Filecoder.OAU virus will certainly instruct its targets to initiate funds transfer for the purpose of counteracting the amendments that the Trojan infection has actually introduced to the target’s tool.

Win32/Filecoder.OAU Summary

These modifications can be as complies with:

  • The binary likely contains encrypted or compressed data.;
  • The executable is compressed using UPX;
  • Uses Windows utilities for basic functionality;
  • Attempts to delete volume shadow copies;
  • Modifies boot configuration settings;
  • Exhibits possible ransomware file modification behavior;
  • Writes a potential ransom message to disk;
  • Network activity detected but not expressed in API logs;
  • Likely virus infection of existing system binary;
  • Uses suspicious command line tools or Windows utilities;
  • Ciphering the documents found on the sufferer’s hard disk — so the target can no more utilize the information;
  • Preventing regular accessibility to the target’s workstation;

Win32/Filecoder.OAU

One of the most normal networks through which Win32/Filecoder.OAU are infused are:

  • By means of phishing emails;
  • As a repercussion of customer winding up on a source that organizes a malicious software;

As soon as the Trojan is efficiently injected, it will either cipher the data on the sufferer’s PC or prevent the tool from working in a correct way – while likewise placing a ransom note that points out the requirement for the victims to effect the settlement for the purpose of decrypting the documents or bring back the documents system back to the initial problem. In most circumstances, the ransom money note will certainly turn up when the customer restarts the PC after the system has actually currently been harmed.

Win32/Filecoder.OAU distribution networks.

In different corners of the globe, Win32/Filecoder.OAU expands by leaps and bounds. Nonetheless, the ransom money notes as well as techniques of extorting the ransom money amount might vary depending on certain neighborhood (regional) setups. The ransom money notes and tricks of extorting the ransom amount may differ depending on particular local (regional) settings.

Ransomware injection

For example:

    Faulty alerts regarding unlicensed software.

    In particular areas, the Trojans commonly wrongfully report having identified some unlicensed applications allowed on the target’s gadget. The alert then demands the customer to pay the ransom money.

    Faulty declarations regarding illegal content.

    In countries where software piracy is less preferred, this approach is not as efficient for the cyber frauds. Conversely, the Win32/Filecoder.OAU popup alert might falsely claim to be deriving from a police establishment as well as will certainly report having situated youngster porn or other illegal information on the tool.

    Win32/Filecoder.OAU popup alert might falsely assert to be obtaining from a regulation enforcement establishment and also will report having located kid porn or various other prohibited information on the device. The alert will similarly consist of a requirement for the individual to pay the ransom money.

Technical details

File Info:

crc32: CA897B65
md5: 1ffe22632e506fdd68765cee84c22f13
name: 1FFE22632E506FDD68765CEE84C22F13.mlw
sha1: c51dda952d5c482b8b033d9c4a07a7a8a1a85275
sha256: 88c0764988d1c951b4e3e6009beb3811ea27f9b41e94f47daaf3090128f32768
sha512: c81b4ef9bcaf374689f752e7a94d26c7b03cc89faa1392c0a26fdeb2a9a39c4d121793658daa16715ba391073fac2393f4fd014a2f3f1d57d008fde020c0631f
ssdeep: 768:yPvqexwEkfzeL4nCmvFk0F3Pi74drNysg45Ctfm9Wko3cNa29TXqRCWZFmeM//I:ivqeDGe0CmvFk0FfVBNst/x216cu63g
type: PE32 executable (GUI) Intel 80386, for MS Windows, UPX compressed

Version Info:

0: [No Data]

Win32/Filecoder.OAU also known as:

GridinSoft Trojan.Ransom.Gen
Bkav W32.AIDetect.malware1
K7AntiVirus Riskware ( 0040eff71 )
Elastic malicious (high confidence)
DrWeb Trojan.Encoder.31087
Cynet Malicious (score: 100)
ALYac Trojan.Ransom.Genasom
Cylance Unsafe
Zillya Trojan.Filecoder.Win32.12589
Sangfor Ransom.Win32.Genasom.MSR
Alibaba Ransom:Win32/generic.ali2000027
K7GW Riskware ( 0040eff71 )
Cybereason malicious.32e506
Symantec ML.Attribute.HighConfidence
ESET-NOD32 a variant of Win32/Filecoder.OAU
APEX Malicious
Avast Win32:Malware-gen
Kaspersky HEUR:Virus.Win32.Infector
BitDefender Gen:Variant.Graftor.717353
NANO-Antivirus Trojan.Win32.Encoder.hcnyni
MicroWorld-eScan Gen:Variant.Graftor.717353
Tencent Win32.Trojan.Raas.Auto
Ad-Aware Gen:Variant.Graftor.717353
Sophos Mal/Generic-S
BitDefenderTheta Gen:NN.ZexaF.34770.dmGfayq1tmki
VIPRE Trojan.Win32.Generic!BT
TrendMicro Ransom.Win32.CRYPTOPXJ.SMJK
McAfee-GW-Edition BehavesLike.Win32.Generic.qc
FireEye Generic.mg.1ffe22632e506fdd
Emsisoft Gen:Variant.Graftor.717353 (B)
SentinelOne Static AI – Malicious PE
Jiangmin Trojan.Agentb.ghw
Avira HEUR/AGEN.1141575
eGambit Unsafe.AI_Score_99%
Microsoft Trojan:Win32/Occamy.C88
Arcabit Trojan.Graftor.DAF229
AegisLab Virus.Win32.Infector.n!c
GData Win32.Trojan-Ransom.Filecoder.CF@gen
TACHYON Ransom/W32.Genasom.114688
AhnLab-V3 Malware/Win32.Generic.C4017809
McAfee GenericRXAA-FA!1FFE22632E50
MAX malware (ai score=80)
VBA32 Trojan.Encoder
Malwarebytes Ransom.XVFXGW
Panda Trj/GdSda.A
TrendMicro-HouseCall Ransom.Win32.CRYPTOPXJ.SMJK
Rising Ransom.Agent!1.C307 (CLASSIC)
Yandex Trojan.Filecoder!b+h7y9ZrmdE
Ikarus Trojan-Ransom.FileCrypter
MaxSecure Trojan.Malware.300983.susgen
Fortinet W32/Filecoder.OAU!tr.ransom
AVG Win32:Malware-gen
Paloalto generic.ml
Qihoo-360 Win32/Ransom.Generic.HgIASOkA

How to remove Win32/Filecoder.OAU virus?

Unwanted application has ofter come with other viruses and spyware. This threats can steal account credentials, or crypt your documents for ransom.
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There is no better way to recognize, remove and prevent PC threats than to use an anti-malware software from GridinSoft2.

Download GridinSoft Anti-Malware.

You can download GridinSoft Anti-Malware by clicking the button below:

Run the setup file.

When setup file has finished downloading, double-click on the setup-antimalware-fix.exe file to install GridinSoft Anti-Malware on your system.

Run Setup.exe

An User Account Control asking you about to allow GridinSoft Anti-Malware to make changes to your device. So, you should click “Yes” to continue with the installation.

GridinSoft Anti-Malware Setup

Press “Install” button.

GridinSoft Anti-Malware Install

Once installed, Anti-Malware will automatically run.

GridinSoft Anti-Malware Splash-Screen

Wait for the Anti-Malware scan to complete.

GridinSoft Anti-Malware will automatically start scanning your system for Win32/Filecoder.OAU files and other malicious programs. This process can take a 20-30 minutes, so I suggest you periodically check on the status of the scan process.

GridinSoft Anti-Malware Scanning

Click on “Clean Now”.

When the scan has finished, you will see the list of infections that GridinSoft Anti-Malware has detected. To remove them click on the “Clean Now” button in right corner.

GridinSoft Anti-Malware Scan Result

Are Your Protected?

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If the guide doesn’t help you to remove Win32/Filecoder.OAU you can always ask me in the comments for getting help.

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References

  1. GridinSoft Anti-Malware Review from HowToFix site: https://howtofix.guide/gridinsoft-anti-malware/
  2. More information about GridinSoft products: https://gridinsoft.com/comparison

About the author

Robert Bailey

I'm Robert Bailey, a passionate Security Engineer with a deep fascination for all things related to malware, reverse engineering, and white hat ethical hacking.

As a white hat hacker, I firmly believe in the power of ethical hacking to bolster security measures. By identifying vulnerabilities and providing solutions, I contribute to the proactive defense of digital infrastructures.

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