Written by Robert Bailey

What is Trojan:Win32/Ymacco.AAF4 infection?

In this short article you will locate concerning the interpretation of Trojan:Win32/Ymacco.AAF4 and also its unfavorable effect on your computer. Such ransomware are a kind of malware that is elaborated by on-line scams to require paying the ransom by a target.

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In the majority of the instances, Trojan:Win32/Ymacco.AAF4 virus will certainly advise its victims to initiate funds move for the function of neutralizing the changes that the Trojan infection has actually introduced to the victim’s gadget.

Trojan:Win32/Ymacco.AAF4 Summary

These modifications can be as follows:

  • Executable code extraction;
  • Creates RWX memory;
  • A process attempted to delay the analysis task.;
  • Reads data out of its own binary image;
  • A process created a hidden window;
  • Drops a binary and executes it;
  • HTTP traffic contains suspicious features which may be indicative of malware related traffic;
  • Performs some HTTP requests;
  • The binary likely contains encrypted or compressed data.;
  • Looks up the external IP address;
  • Uses Windows utilities for basic functionality;
  • Deletes its original binary from disk;
  • Installs itself for autorun at Windows startup;
  • A process sent information about the computer to a remote location.;
  • Attempts to modify proxy settings;
  • Creates a copy of itself;
  • Anomalous binary characteristics;
  • Uses suspicious command line tools or Windows utilities;
  • Ciphering the documents located on the sufferer’s hard disk — so the victim can no more utilize the information;
  • Preventing regular accessibility to the victim’s workstation;

Related domains: Ransom.Locky!8.1CD4 (TFE:4:bMxrIrQfRnU) Ransom.Locky!8.1CD4 (TFE:4:bMxrIrQfRnU)


The most common networks whereby Trojan:Win32/Ymacco.AAF4 are infused are:

  • By means of phishing e-mails;
  • As a repercussion of user ending up on a source that hosts a harmful software application;

As soon as the Trojan is efficiently infused, it will either cipher the data on the sufferer’s PC or avoid the gadget from operating in a proper manner – while also positioning a ransom note that discusses the demand for the targets to effect the payment for the function of decrypting the files or recovering the data system back to the preliminary condition. In a lot of instances, the ransom note will show up when the customer restarts the PC after the system has currently been damaged.

Trojan:Win32/Ymacco.AAF4 distribution channels.

In numerous corners of the globe, Trojan:Win32/Ymacco.AAF4 expands by leaps as well as bounds. Nonetheless, the ransom money notes and tricks of extorting the ransom money amount might differ depending on particular regional (regional) settings. The ransom money notes as well as methods of obtaining the ransom quantity might vary depending on particular regional (local) settings.

Ransomware injection

For instance:

    Faulty notifies concerning unlicensed software program.

    In specific areas, the Trojans often wrongfully report having detected some unlicensed applications enabled on the sufferer’s tool. The alert then demands the customer to pay the ransom.

    Faulty statements regarding illegal content.

    In nations where software piracy is much less preferred, this technique is not as efficient for the cyber scams. Additionally, the Trojan:Win32/Ymacco.AAF4 popup alert might wrongly assert to be deriving from a law enforcement organization and also will report having situated kid porn or other illegal data on the device.

    Trojan:Win32/Ymacco.AAF4 popup alert may incorrectly declare to be deriving from a law enforcement organization and will report having situated youngster porn or various other illegal information on the tool. The alert will in a similar way have a demand for the user to pay the ransom money.

Technical details

File Info:

crc32: 23D2C514
md5: e8a8c90d7da67da7ee790e9e49127cf7
name: upload_file
sha1: 65731d02a9a9899b1ee72e822d3dab2129fffa9a
sha256: f4427ef6b665bf0563f23fde314caf9f905ab1e049fc5c0b33384d526ec3cbf1
sha512: aa0c0cb8aa0d6864da79cee8e14c3dd70d320d42ca19b999be34a243416011aea3fb9b02a10b860234dde7abfaef6ef4fca704233258beb1b182fb0c043fb9a3
ssdeep: 3072:5aJU0yU9VRyDIdp9D9d8GpfJd5DSqvOYxdZo5KKtRmHeuYHxrOxf:5asKdp95mG/2qJduQSRoeuWx
type: PE32 executable (GUI) Intel 80386, for MS Windows

Version Info:

Comments: Auxiliary program for Internet Download Manager
CompanyName: Tonec Inc.
Translation: 0x0409 0x04b0

Trojan:Win32/Ymacco.AAF4 also known as:

GridinSoft Trojan.Ransom.Gen
Bkav W32.AIDetectVM.malware1
Elastic malicious (high confidence)
MicroWorld-eScan Trojan.GenericKD.34773835
CAT-QuickHeal Trojan.Wacatac
McAfee RDN/Generic Downloader.x
Cylance Unsafe
VIPRE Trojan.Win32.Generic!BT
Sangfor Malware
K7AntiVirus Trojan ( 0040f0ce1 )
BitDefender Trojan.GenericKD.34773835
K7GW Trojan-Downloader ( 0040f0ce1 )
Cybereason malicious.2a9a98
TrendMicro TrojanSpy.Win32.QAKBOT.SMTHA.hp
Cyren W32/Locky.H2.gen!Eldorado
Symantec ML.Attribute.HighConfidence
APEX Malicious
Kaspersky Trojan-Downloader.Win32.Geral.brap
Alibaba Trojan:Win32/Emotet.158
Rising Ransom.Locky!8.1CD4 (TFE:4:bMxrIrQfRnU)
Ad-Aware Trojan.GenericKD.34773835
Sophos Mal/Generic-S
Comodo Malware@#1fieb75bbkaxf
F-Secure Trojan.TR/Crypt.Agent.ziiwf
DrWeb Trojan.DownLoader35.709
Invincea Mal/Generic-S
Emsisoft Trojan.GenericKD.34773835 (B)
Ikarus Trojan-Ransom.Shade
Webroot W32.Rogue.Gen
Avira TR/Crypt.Agent.ziiwf
Microsoft Trojan:Win32/Ymacco.AAF4
Arcabit Trojan.Generic.D2129B4B
ZoneAlarm Trojan-Downloader.Win32.Geral.brap
GData Trojan.GenericKD.34773835
Cynet Malicious (score: 100)
Acronis suspicious
BitDefenderTheta Gen:NN.ZexaF.34570.Fq0@aOJliwli
ALYac Trojan.GenericKD.34773835
MAX malware (ai score=86)
VBA32 BScope.Trojan.Wacatac
Malwarebytes Trojan.Injector
Panda Trj/GdSda.A
ESET-NOD32 a variant of Win32/Kryptik.CVYW
TrendMicro-HouseCall TrojanSpy.Win32.QAKBOT.SMTHA.hp
Tencent Win32.Trojan-downloader.Geral.Amce
SentinelOne DFI – Malicious PE
eGambit Unsafe.AI_Score_99%
Fortinet W32/Zenpak.AWSE!tr
AVG FileRepMalware
CrowdStrike win/malicious_confidence_100% (W)
Qihoo-360 Generic/HEUR/QVM20.1.9647.Malware.Gen

How to remove Trojan:Win32/Ymacco.AAF4 ransomware?

Unwanted application has ofter come with other viruses and spyware. This threats can steal account credentials, or crypt your documents for ransom.
Reasons why I would recommend GridinSoft1

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.AAF4 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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Full version of GridinSoft Anti-Malware

If the guide doesn’t help you to remove Trojan:Win32/Ymacco.AAF4 you can always ask me in the comments for getting help.

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  1. GridinSoft Anti-Malware Review from HowToFix site:
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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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