What is Trojan:Win32/Ymacco.AAFC infection?

In this article you will certainly discover concerning the interpretation of Trojan:Win32/Ymacco.AAFC as well as its adverse impact on your computer system. Such ransomware are a type of malware that is specified by online fraudulences to require paying the ransom by a target.

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Most of the instances, Trojan:Win32/Ymacco.AAFC infection will instruct its targets to initiate funds transfer for the purpose of counteracting the modifications that the Trojan infection has actually presented to the sufferer’s tool.

Trojan:Win32/Ymacco.AAFC Summary

These modifications can be as complies with:

  • Expresses interest in specific running processes;
  • Repeatedly searches for a not-found process, may want to run with startbrowser=1 option;
  • The binary likely contains encrypted or compressed data. In this case, encryption is a way of hiding virus’ code from antiviruses and virus’ analysts.
  • The executable is compressed using UPX;
  • Uses Windows utilities for basic functionality;
  • Installs itself for autorun at Windows startup. There is simple tactic using the Windows startup folder located at:
    C:\Users\[user-name]\AppData\Roaming\Microsoft\Windows\StartMenu\Programs\Startup. Shortcut links (.lnk extension) placed in this folder will cause Windows to launch the application each time [user-name] logs into Windows.

    The registry run keys perform the same action, and can be located in different locations:

    • HKEY_LOCAL_MACHINE\Software\Microsoft\Windows\CurrentVersion\Run
    • HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Run
    • HKEY_LOCAL_MACHINE\Software\Microsoft\Windows\CurrentVersion\RunOnce
    • HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\RunOnce
  • Creates a hidden or system file. The malware adds the hidden attribute to every file and folder on your system, so it appears as if everything has been deleted from your hard drive.
  • Likely virus infection of existing system binary;
  • Creates a copy of itself;
  • Ciphering the documents located on the sufferer’s hard drive — so the target can no more make use of the data;
  • Preventing normal accessibility to the sufferer’s workstation. This is the typical behavior of a virus called locker. It blocks access to the computer until the victim pays the ransom.


The most typical channels whereby Trojan:Win32/Ymacco.AAFC are injected are:

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

As quickly as the Trojan is efficiently infused, it will either cipher the data on the target’s computer or protect against the tool from working in a proper manner – while likewise positioning a ransom money note that states the demand for the targets to effect the payment for the purpose of decrypting the documents or restoring the documents system back to the initial condition. In the majority of instances, the ransom money note will certainly come up when the client restarts the COMPUTER after the system has currently been harmed.

Trojan:Win32/Ymacco.AAFC circulation networks.

In various edges of the world, Trojan:Win32/Ymacco.AAFC expands by leaps as well as bounds. However, the ransom notes as well as techniques of obtaining the ransom quantity might vary depending on particular regional (local) settings. The ransom notes and methods of extorting the ransom quantity may differ depending on specific local (local) setups.

Ransomware injection

As an example:

    Faulty notifies concerning unlicensed software.

    In particular locations, the Trojans frequently wrongfully report having detected some unlicensed applications allowed on the target’s device. The sharp after that requires the individual to pay the ransom money.

    Faulty declarations regarding unlawful content.

    In countries where software piracy is less preferred, this approach is not as reliable for the cyber frauds. Alternatively, the Trojan:Win32/Ymacco.AAFC popup alert might incorrectly assert to be stemming from a police establishment and also will certainly report having situated youngster pornography or other illegal data on the gadget.

    Trojan:Win32/Ymacco.AAFC popup alert might falsely declare to be deriving from a regulation enforcement organization and will certainly report having located kid porn or other unlawful information on the tool. The alert will in a similar way consist of a need for the user to pay the ransom.

Technical details

File Info:

crc32: 3EB8734A
md5: 337ec6f1065c7b12058af39ee0903497
name: 337EC6F1065C7B12058AF39EE0903497.mlw
sha1: 4f6cc7517fadaab432cffd03ed88ea5104b5e363
sha256: fcf875051025fb0afdbaeacbf235fc380567dc8fc3e6ebd44ecc07ceb88f7a7c
sha512: d6b655cfae8a432037b4b116a1543a3f3279a0b89749e278dc4ab3980bc082724133ff5db37253ff5bec25a50411d0967f3e5d10c0eabb8d8ae415ef7ee93ced
ssdeep: 6144:jMy9xixYpi5HTfJQGdaDeMHaIxw1kA/rd3EOI7OMr/CQ2EBtafZ0Hk1qcWgexDU:L7ieIpJtUDdxwn/r2Hv/CQ2fB1qcWPx
type: PE32 executable (console) Intel 80386, for MS Windows, UPX compressed

Version Info:

0: [No Data]

Trojan:Win32/Ymacco.AAFC also known as:

GridinSoft Trojan.Ransom.Gen
Bkav W32.AIDetect.malware1
K7AntiVirus Trojan ( 005739e91 )
Elastic malicious (high confidence)
Cynet Malicious (score: 100)
ALYac Trojan.Ransom.Fonix
Cylance Unsafe
Sangfor Trojan.Win32.Save.a
CrowdStrike win/malicious_confidence_90% (W)
Alibaba Ransom:Win32/FonixCrypter.7dda18fa
K7GW Trojan ( 005739e91 )
Cybereason malicious.1065c7
Symantec ML.Attribute.HighConfidence
ESET-NOD32 a variant of Win32/Filecoder.FONIX.A
APEX Malicious
Avast Win32:Malware-gen
ClamAV Win.Ransomware.Fonix-9811540-0
Kaspersky HEUR:Trojan.Win32.Generic
BitDefender Generic.Ransom.HydraCrypt.DB38A974
MicroWorld-eScan Generic.Ransom.HydraCrypt.DB38A974
Tencent Win32.Trojan.Filecoder.Liqw
Ad-Aware Generic.Ransom.HydraCrypt.DB38A974
Sophos Mal/Generic-S
Comodo Malware@#2uj4ggnl0riqx
F-Secure Heuristic.HEUR/AGEN.1141022
BitDefenderTheta Gen:NN.ZexaF.34628.xmGfaaCljDgi
VIPRE Trojan.Win32.Generic!BT
TrendMicro TROJ_GEN.R002C0PA921
McAfee-GW-Edition BehavesLike.Win32.Dropper.fc
Emsisoft Generic.Ransom.HydraCrypt.DB38A974 (B)
Jiangmin AdWare.StartSurf.cmvv
Avira HEUR/AGEN.1141022
eGambit Unsafe.AI_Score_99%
Microsoft Trojan:Win32/Ymacco.AAFC
Arcabit Generic.Ransom.HydraCrypt.DB38A974
ZoneAlarm HEUR:Trojan.Win32.Generic
GData Generic.Ransom.HydraCrypt.DB38A974
AhnLab-V3 Malware/Win32.Generic.C4291396
Acronis suspicious
McAfee Artemis!337EC6F1065C
MAX malware (ai score=85)
VBA32 BScope.Trojan.Encoder
Malwarebytes Ransom.Fonix
Panda Trj/GdSda.A
TrendMicro-HouseCall TROJ_GEN.R002C0PA921
Rising Trojan.Filecoder!8.68 (TFE:dGZlOgVxUxy10i3gnQ)
Ikarus Trojan-Ransom.FileCrypter
Fortinet W32/FONIX.A!tr.ransom
AVG Win32:Malware-gen
Qihoo-360 Win32/Ransom.Generic.HwsBuh8A

How to remove Trojan:Win32/Ymacco.AAFC 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 Trojan:Win32/Ymacco.AAFC 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 Trojan:Win32/Ymacco.AAFC 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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