Win32/Agent.AAHT

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

What is Win32/Agent.AAHT infection?

In this post you will find about the definition of Win32/Agent.AAHT as well as its adverse influence on your computer system. Such ransomware are a form of malware that is specified by online frauds to demand paying the ransom by a victim.

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In the majority of the situations, Win32/Agent.AAHT infection will advise its victims to launch funds move for the purpose of neutralizing the modifications that the Trojan infection has introduced to the target’s gadget.

Win32/Agent.AAHT Summary

These alterations 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.
  • Attempts to connect to a dead IP:Port (1 unique times);
  • 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.
  • Unconventionial language used in binary resources: Maori;
  • The binary likely contains encrypted or compressed data. In this case, encryption is a way of hiding virus’ code from antiviruses and virus’ analysts.
  • 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 copy of itself;
  • Anomalous binary characteristics. This is a way of hiding virus’ code from antiviruses and virus’ analysts.
  • Ciphering the papers located on the victim’s hard disk drive — so the victim can no longer utilize the information;
  • Preventing regular accessibility to the sufferer’s workstation;
Similar behavior
Related domains
z.whorecord.xyzBehavesLike.Win32.Vundo.vc
a.tomx.xyzBehavesLike.Win32.Vundo.vc

Win32/Agent.AAHT

The most typical channels through which Win32/Agent.AAHT Trojans are injected are:

  • By means of phishing e-mails;
  • As a consequence of individual winding up on a resource that holds a malicious software application;

As soon as the Trojan is efficiently injected, it will certainly either cipher the data on the victim’s computer or stop the gadget from functioning in a proper fashion – while additionally positioning a ransom note that points out the requirement for the victims to effect the repayment for the objective of decrypting the documents or recovering the data system back to the first condition. In the majority of circumstances, the ransom money note will certainly turn up when the customer restarts the PC after the system has currently been harmed.

Win32/Agent.AAHT circulation channels.

In different corners of the globe, Win32/Agent.AAHT grows by leaps and also bounds. However, the ransom notes and methods of obtaining the ransom quantity may differ depending on particular neighborhood (regional) settings. The ransom money notes and also techniques of extorting the ransom money amount might differ depending on certain neighborhood (local) setups.

Ransomware injection

As an example:

    Faulty alerts concerning unlicensed software.

    In particular locations, the Trojans usually wrongfully report having actually detected some unlicensed applications enabled on the victim’s gadget. The sharp after that demands the individual to pay the ransom.

    Faulty statements about unlawful content.

    In countries where software program piracy is much less prominent, this technique is not as effective for the cyber scams. Alternatively, the Win32/Agent.AAHT popup alert may falsely assert to be originating from a police institution and will report having located kid porn or various other illegal information on the gadget.

    Win32/Agent.AAHT popup alert might falsely assert to be acquiring from a legislation enforcement establishment as well as will certainly report having situated kid pornography or other unlawful data on the gadget. The alert will similarly contain a need for the customer to pay the ransom.

Technical details

File Info:

crc32: 662D45F6
md5: 76b2e46a06e6a9012928312dae2ae3c0
name: readme.exe
sha1: de57d0919972cda01eb174b36b972a84a380a95f
sha256: d6fcdef4c8e3e818032996be01aef426113d629926ee1e04288386d0d4da35d7
sha512: ab8ef30eb47b2d7351e5b121835193290d5b57f1ea75df742bae265827d47ce0b2dbac83c0c0668bf981dd243455e37e179d15efb32b7ec67b1510e9b4376fa5
ssdeep: 49152:vkIriyyL01iTmBTmXSO7Y+51oGbcXqyNz4yppdz4M4a:vkIWyyL0c6BnO7F5yXqypNlQ
type: PE32 executable (GUI) Intel 80386, for MS Windows

Version Info:

0: [No Data]

Win32/Agent.AAHT also known as:

BkavW32.AIDetectVM.malware
MicroWorld-eScanTrojan.GenericKDZ.66327
McAfeeArtemis!76B2E46A06E6
CylanceUnsafe
SangforMalware
BitDefenderTrojan.GenericKDZ.66327
K7GWTrojan ( 0056429e1 )
SymantecML.Attribute.HighConfidence
APEXMalicious
AvastWin32:DropperX-gen [Drp]
GDataTrojan.GenericKDZ.66327
KasperskyTrojan.Win32.Marut.ed
AlibabaTrojan:Win32/Marut.f2677846
AegisLabTrojan.Win32.Marut.4!c
TencentWin32.Trojan.Marut.Ajbu
Endgamemalicious (high confidence)
SophosMal/RyPack-A
F-SecureTrojan.TR/Crypt.ZPACK.zifuc
DrWebTrojan.DownLoader33.29760
Invinceaheuristic
McAfee-GW-EditionBehavesLike.Win32.Vundo.vc
Trapminemalicious.moderate.ml.score
FireEyeGeneric.mg.76b2e46a06e6a901
EmsisoftTrojan.GenericKDZ.66327 (B)
SentinelOneDFI – Malicious PE
CyrenW32/Trojan.XFYZ-3186
AviraTR/Crypt.ZPACK.zifuc
eGambitUnsafe.AI_Score_97%
MAXmalware (ai score=88)
ArcabitTrojan.Generic.D10317
ZoneAlarmTrojan.Win32.Marut.ed
MicrosoftTrojan:Win32/Occamy.C
AhnLab-V3Trojan/Win32.Kryptik.C4052790
Ad-AwareTrojan.GenericKDZ.66327
MalwarebytesTrojan.MalPack.GS
ESET-NOD32Win32/Agent.AAHT
TrendMicro-HouseCallTROJ_GEN.R002H09D920
RisingMalware.Obscure/Heur!1.9E03 (CLOUD)
IkarusTrojan.Win32.Gapined
FortinetW32/Kryptik.HPCF!tr
BitDefenderThetaGen:NN.ZexaF.34106.tsW@amf4!1eG
AVGWin32:DropperX-gen [Drp]
Paloaltogeneric.ml
CrowdStrikewin/malicious_confidence_90% (W)
Qihoo-360Generic/HEUR/QVM10.2.7421.Malware.Gen

How to remove Win32/Agent.AAHT 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

The is an excellent way to deal with recognizing and removing threats – using Gridinsoft Anti-Malware. This program will scan your PC, find and neutralize all suspicious processes.2.

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/Agent.AAHT 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/Agent.AAHT 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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