What is Win32/Filecoder.MaktubLocker.A infection?

In this short article you will certainly discover about the definition of Win32/Filecoder.MaktubLocker.A and its negative influence on your computer system. Such ransomware are a type of malware that is elaborated by on the internet fraudulences to demand paying the ransom money by a sufferer.

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Most of the instances, Win32/Filecoder.MaktubLocker.A infection will certainly advise its targets to launch funds transfer for the objective of reducing the effects of the modifications that the Trojan infection has presented to the target’s tool.

Win32/Filecoder.MaktubLocker.A Summary

These adjustments can be as adheres to:

  • Executable code extraction. Cybercriminals often use binary packers to hinder the malicious code from reverse-engineered by malware analysts. A packer is a tool that compresses, encrypts, and modifies a malicious file’s format. Sometimes packers can be used for legitimate ends, for example, to protect a program against cracking or copying.
  • Compression (or decompression);
  • Creates RWX memory. There is a security trick with memory regions that allows an attacker to fill a buffer with a shellcode and then execute it. Filling a buffer with shellcode isn’t a big deal, it’s just data. The problem arises when the attacker is able to control the instruction pointer (EIP), usually by corrupting a function’s stack frame using a stack-based buffer overflow, and then changing the flow of execution by assigning this pointer to the address of the shellcode.
  • The binary likely contains encrypted or compressed data. In this case, encryption is a way of hiding virus’ code from antiviruses and virus’ analysts.
  • Exhibits possible ransomware file modification behavior;
  • Writes a potential ransom message to disk;
  • Mimics icon used for popular non-executable file format;
  • Creates a known Maktub ransomware decryption instruction / key file.;
  • Anomalous binary characteristics. This is a way of hiding virus’ code from antiviruses and virus’ analysts.
  • Ciphering the records found on the target’s hard disk drive — so the sufferer can no more use the information;
  • Preventing regular accessibility to the sufferer’s workstation;


One of the most common channels whereby Win32/Filecoder.MaktubLocker.A Trojans are injected are:

  • By ways of phishing emails;
  • As a repercussion of individual ending up on a resource that organizes a harmful software;

As soon as the Trojan is effectively infused, it will either cipher the information on the target’s PC or avoid the device from operating in an appropriate way – while likewise putting a ransom money note that mentions the requirement for the sufferers to effect the payment for the function of decrypting the papers or restoring the documents system back to the first condition. In a lot of circumstances, the ransom note will certainly show up when the client restarts the PC after the system has currently been damaged.

Win32/Filecoder.MaktubLocker.A distribution networks.

In numerous corners of the world, Win32/Filecoder.MaktubLocker.A expands by jumps and bounds. Nonetheless, the ransom notes as well as tricks of extorting the ransom quantity might vary depending on particular regional (local) setups. The ransom money notes as well as techniques of obtaining the ransom quantity may differ depending on specific neighborhood (regional) setups.

Ransomware injection

For example:

    Faulty alerts about unlicensed software application.

    In particular locations, the Trojans often wrongfully report having actually spotted some unlicensed applications allowed on the sufferer’s gadget. The sharp then demands the individual to pay the ransom.

    Faulty declarations concerning illegal content.

    In countries where software program piracy is less prominent, this approach is not as effective for the cyber fraudulences. Conversely, the Win32/Filecoder.MaktubLocker.A popup alert may falsely claim to be stemming from a police institution and also will certainly report having located kid pornography or various other unlawful data on the tool.

    Win32/Filecoder.MaktubLocker.A popup alert might falsely assert to be deriving from a regulation enforcement organization as well as will report having situated kid porn or various other unlawful data on the gadget. The alert will likewise contain a need for the individual to pay the ransom.

Technical details

File Info:

crc32: BF8F1491
md5: e87136d20396db6da59342011a203111
name: E87136D20396DB6DA59342011A203111.mlw
sha1: 97c308207a9354ec869f56bd42267c56b48d6c4d
sha256: 7887277540f971323a2c823526014136590fbffa3c5e4472de31e3e705459df4
sha512: 073f00250bf0d603b82f4adb94881115addda48944761fa2e21a94554021b4f41e2174ac9276788ea20f7bde62ba06f0f56b05178141fdaf8d396c628e871c13
ssdeep: 3072:cYOvEC49nmy5fOajnI8gV6sPQkd61tb7iaOXiy8X500m+DZNXCJuSwCufvBufv4:cYmEDmyEajnPu6sujX1SuSwR1
type: PE32 executable (GUI) Intel 80386, for MS Windows

Version Info:

LegalCopyright: (C) 2007-2015 Moo0
CompanyName: Moo0
LegalTrademarks: (C) 2007-2015 Moo0
Comments: Internally Three
ProductName: Pdu Envelope
FileDescription: Internally Three
OriginalFilename: Pdu Envelope
Translation: 0x0409 0x04b0

Win32/Filecoder.MaktubLocker.A also known as:

GridinSoft Trojan.Ransom.Gen
K7AntiVirus Trojan ( 0055e3ef1 )
Elastic malicious (high confidence)
DrWeb Trojan.Encoder.4343
Cynet Malicious (score: 100)
CAT-QuickHeal Ransom.Takabum.S9
ALYac Gen:Heur.Pack.Emotet.6
Cylance Unsafe
Zillya Downloader.Cabby.Win32.1859
Sangfor Trojan.Win32.Save.a
CrowdStrike win/malicious_confidence_100% (D)
Alibaba Ransom:Win32/Takabum.5cf9d980
K7GW Trojan ( 0055e3ef1 )
Cybereason malicious.20396d
Symantec Trojan.Gen.2
ESET-NOD32 Win32/Filecoder.MaktubLocker.A
APEX Malicious
Avast Win32:Malware-gen
ClamAV BC.Win.Packer.Troll-14
Kaspersky HEUR:Trojan.Win32.Generic
BitDefender Gen:Heur.Pack.Emotet.6
NANO-Antivirus Trojan.Win32.MlwGen.ebfebf
SUPERAntiSpyware Ransom.Maktub/Variant
MicroWorld-eScan Gen:Heur.Pack.Emotet.6
Tencent Malware.Win32.Gencirc.10c0efe7
Ad-Aware Gen:Heur.Pack.Emotet.6
Comodo Malware@#1caj4rdda78hr
BitDefenderTheta Gen:NN.ZexaF.34670.pu0@aG4PE7ai
VIPRE Trojan.Win32.Generic!BT
McAfee-GW-Edition Ransomware-FHK!E87136D20396
Emsisoft Gen:Heur.Pack.Emotet.6 (B)
SentinelOne Static AI – Malicious PE
Jiangmin TrojanDownloader.Cabby.cns
Webroot W32.Trojan.Gen
Avira HEUR/AGEN.1111823
Microsoft Ransom:Win32/Takabum.A
AegisLab Trojan.Win32.Generic.4!c
GData Gen:Heur.Pack.Emotet.6
TACHYON Trojan-Downloader/W32.Cabby.253440
AhnLab-V3 Trojan/Win32.Filecoder.R177242
Acronis suspicious
McAfee Ransomware-FHK!E87136D20396
MAX malware (ai score=100)
VBA32 BScope.TrojanRansom.Foreign
Malwarebytes Malware.AI.787394126
Panda Trj/GdSda.A
TrendMicro-HouseCall RANSOM_CRYPNGB_FC290003.UVPM
Rising Ransom.Takabum!8.47FD (CLOUD)
Yandex Trojan.DL.Cabby!uhnui75coeM
Ikarus Trojan.Win32.Filecoder
Fortinet W32/Generic.AC.343C17!tr
AVG Win32:Malware-gen
Qihoo-360 Win32/Ransom.Generic.HwoCEpsA

How to remove Win32/Filecoder.MaktubLocker.A 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.

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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.MaktubLocker.A 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?

GridinSoft Anti-Malware will scan and clean your PC for free in the trial period. The free version offer real-time protection for first 2 days. If you want to be fully protected at all times – I can recommended you to purchase a full version:

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

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About the author

Robert Bailey

Security Engineer. Interested in malware, reverse engineering, white ethical hacking. I like coding, travelling and bikes.

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