Written by Robert Bailey

What is Trojan:Win32/Ymacco.AA9C infection?

In this post you will certainly locate about the definition of Trojan:Win32/Ymacco.AA9C and its negative impact on your computer. Such ransomware are a kind of malware that is specified by on the internet frauds to demand paying the ransom money by a victim.

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In the majority of the situations, Trojan:Win32/Ymacco.AA9C infection will certainly advise its sufferers to start funds transfer for the objective of neutralizing the amendments that the Trojan infection has introduced to the victim’s tool.

Trojan:Win32/Ymacco.AA9C Summary

These adjustments can be as complies with:

  • Executable code extraction;
  • Creates RWX memory;
  • Network activity detected but not expressed in API logs;
  • Anomalous binary characteristics;
  • Ciphering the files found on the target’s hard disk drive — so the victim can no more utilize the information;
  • Preventing routine access to the victim’s workstation;


One of the most common channels through which Trojan:Win32/Ymacco.AA9C Trojans are infused are:

  • By methods of phishing emails;
  • As an effect of customer ending up on a source that organizes a destructive software;

As soon as the Trojan is successfully infused, it will either cipher the information on the victim’s PC or avoid the tool from operating in a correct manner – while likewise placing a ransom note that points out the requirement for the sufferers to impact the repayment for the purpose of decrypting the documents or bring back the data system back to the initial problem. In a lot of circumstances, the ransom note will certainly turn up when the customer restarts the PC after the system has actually currently been damaged.

Trojan:Win32/Ymacco.AA9C circulation networks.

In various corners of the globe, Trojan:Win32/Ymacco.AA9C grows by jumps as well as bounds. Nevertheless, the ransom money notes and also techniques of obtaining the ransom money amount may differ depending on particular regional (local) setups. The ransom notes and also tricks of obtaining the ransom money amount might vary depending on certain neighborhood (local) settings.

Ransomware injection

For instance:

    Faulty informs concerning unlicensed software.

    In specific areas, the Trojans typically wrongfully report having actually spotted some unlicensed applications made it possible for on the target’s device. The sharp then requires the customer to pay the ransom money.

    Faulty declarations concerning prohibited web content.

    In countries where software piracy is less popular, this technique is not as efficient for the cyber frauds. Alternatively, the Trojan:Win32/Ymacco.AA9C popup alert might falsely declare to be deriving from a law enforcement institution and will report having situated child porn or various other prohibited information on the gadget.

    Trojan:Win32/Ymacco.AA9C popup alert may wrongly claim to be deriving from a regulation enforcement organization and also will certainly report having situated kid pornography or various other illegal data on the tool. The alert will likewise have a requirement for the customer to pay the ransom money.

Technical details

File Info:

crc32: 321F1752
md5: d6fa64f36eab990669f0b81f84b9a78a
name: upload_file
sha1: ed5b60a640a19afe8d1281bf691f40bac34eba8a
sha256: 9c900078cc6061fb7ba038ee5c065a45112665f214361d433fc3906bf288e0eb
sha512: de1a28c2110af3fec74ca62fbf0f641b0d731b470a1ebff5b2ec0d8dac336f92414e3c577512e716275a11a8ddd3897db620925122774b1849b954efc0f975e1
ssdeep: 12288:IqbiQhcOzpeIWz8RewhjaYuezuitveq71fybzpoM5WFNS:XU2aYj7tvemepoM5iN
type: PE32 executable (DLL) (GUI) Intel 80386, for MS Windows

Version Info:

0: [No Data]

Trojan:Win32/Ymacco.AA9C also known as:

GridinSoft Trojan.Ransom.Gen
Bkav W32.AIDetectVM.malware1
Elastic malicious (high confidence)
MicroWorld-eScan Trojan.GenericKD.34561284
FireEye Trojan.GenericKD.34561284
CAT-QuickHeal Trojan.Ymacco
McAfee Artemis!D6FA64F36EAB
Cylance Unsafe
VIPRE Trojan.Win32.Generic!BT
AegisLab Trojan.Win32.Generic.4!c
CrowdStrike win/malicious_confidence_60% (D)
BitDefender Trojan.GenericKD.34561284
K7GW Trojan ( 0056a9491 )
K7AntiVirus Trojan ( 0056a9491 )
TrendMicro Ransom.Win32.EGREGOR.A
BitDefenderTheta Gen:NN.ZedlaF.34298.XC4@a4H7q4o
Cyren W32/Trojan.GKDC-0358
Symantec Trojan.Gen.2
Avast Win32:CrypterX-gen [Trj]
ClamAV Win.Packed.Zusy-9770087-0
Kaspersky HEUR:Trojan.Win32.Generic
Alibaba Trojan:Win32/Kryptik.c644d31e
NANO-Antivirus Trojan.Win32.Kryptik.hwyjqd
ViRobot Trojan.Win32.Z.Kryptik.808960.AN
Ad-Aware Trojan.GenericKD.34561284
Sophos Mal/Generic-S
Comodo Malware@#3vuq63udbd16j
F-Secure Trojan.TR/Crypt.Agent.gykgj
Zillya Trojan.Kryptik.Win32.2531885
Invincea Mal/Generic-S
McAfee-GW-Edition Artemis!Trojan
Emsisoft Trojan.GenericKD.34561284 (B)
Webroot W32.Trojan.Gen
Avira TR/Crypt.Agent.gykgj
MAX malware (ai score=86)
Microsoft Trojan:Win32/Ymacco.AA9C
Arcabit Trojan.Generic.D20F5D04
ZoneAlarm HEUR:Trojan.Win32.Generic
GData Trojan.GenericKD.34561284
AhnLab-V3 Trojan/Win32.Cryptor.C4064147
TACHYON Trojan/W32.Agent.808960.BU
Malwarebytes Trojan.Crypt
Panda Trj/GdSda.A
ESET-NOD32 a variant of Win32/Kryptik.HEDE
TrendMicro-HouseCall Ransom.Win32.EGREGOR.A
Rising Trojan.Generic@ML.89 (RDML:s2M4uR0L0+6+Q+2b0b6OZw)
Ikarus Trojan.Win32.Crypt
Fortinet W32/Kryptik.HEDE!tr
AVG Win32:CrypterX-gen [Trj]
Qihoo-360 Generic/HEUR/QVM40.1.12AC.Malware.Gen

How to remove Trojan:Win32/Ymacco.AA9C 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.AA9C 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:

Full version of GridinSoft

Full version of GridinSoft Anti-Malware

If the guide doesn’t help you to remove Trojan:Win32/Ymacco.AA9C 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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