Win32:Agent-AUAC [Trj]

What is Win32:Agent-AUAC [Trj] infection?

In this short article you will find regarding the definition of Win32:Agent-AUAC [Trj] and its unfavorable effect on your computer. Such ransomware are a kind of malware that is clarified by online scams to demand paying the ransom money by a target.

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Most of the situations, Win32:Agent-AUAC [Trj] ransomware will advise its sufferers to start funds move for the function of reducing the effects of the amendments that the Trojan infection has introduced to the victim’s tool.

Win32:Agent-AUAC [Trj] Summary

These alterations can be as follows:

  • 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.
  • Injection (inter-process);
  • Injection with CreateRemoteThread in a remote process;
  • 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.
  • Mimics the system’s user agent string for its own requests;
  • Unconventionial binary language: Polish;
  • Unconventionial language used in binary resources: Polish;
  • Uses Windows utilities for basic functionality;
  • Deletes its original binary from disk;
  • Attempts to delete volume shadow copies;
  • Attempts to stop active services;
  • Modifies boot configuration settings;
  • Behavior consistent with a dropper attempting to download the next stage.;
  • 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.
  • Attempts to modify proxy settings. This trick used for inject malware into connection between browser and server;
  • Creates a copy of itself;
  • Attempts to disable System Restore. System Restore function – allows you to revert the computer’s state (system files, applications, and system settings) to that of a previous point in time, which can be used to recover after a virus attack.
  • Uses suspicious command line tools or Windows utilities;
  • Ciphering the files found on the sufferer’s hard disk — so the target can no longer use the data;
  • Preventing routine accessibility to the target’s workstation. This is the typical behavior of a virus called locker. It blocks access to the computer until the victim pays the ransom.

Win32:Agent-AUAC [Trj]

The most normal networks through which Win32:Agent-AUAC [Trj] Trojans are injected are:

  • By ways of phishing e-mails;
  • As a consequence of user ending up on a source that holds a destructive software;

As soon as the Trojan is successfully infused, it will certainly either cipher the data on the sufferer’s computer or protect against the device from working in a proper way – while likewise positioning a ransom money note that mentions the requirement for the victims to effect the repayment for the objective of decrypting the papers or recovering the file system back to the first problem. In many circumstances, the ransom note will turn up when the client reboots the PC after the system has actually currently been harmed.

Win32:Agent-AUAC [Trj] distribution networks.

In numerous edges of the globe, Win32:Agent-AUAC [Trj] expands by leaps as well as bounds. Nonetheless, the ransom money notes and also methods of extorting the ransom money amount may vary depending on certain neighborhood (regional) settings. The ransom notes and tricks of extorting the ransom money amount might differ depending on certain regional (local) setups.

Ransomware injection

For instance:

    Faulty alerts concerning unlicensed software application.

    In certain locations, the Trojans typically wrongfully report having spotted some unlicensed applications allowed on the target’s tool. The sharp after that demands the individual to pay the ransom.

    Faulty declarations concerning illegal content.

    In countries where software piracy is less prominent, this technique is not as effective for the cyber frauds. Additionally, the Win32:Agent-AUAC [Trj] popup alert may incorrectly assert to be stemming from a police organization as well as will certainly report having located child porn or other illegal data on the tool.

    Win32:Agent-AUAC [Trj] 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 unlawful data on the tool. The alert will similarly consist of a need for the user to pay the ransom money.

Technical details

File Info:

crc32: 6A7D9B88
md5: 19ae22940136ebc3ff7b43acf4540144
name: 19AE22940136EBC3FF7B43ACF4540144.mlw
sha1: 051986225ff374b2d239c4162dda5ba36cd47edd
sha256: 20d2a7ce74651901cb75da2bf3689230372d9488f051eb51d17e0181f29ec14c
sha512: a80b019e4f325c8e41dfbe543eab4452a79673bf68a5be623970cd79159a4f72a44cb7bf807ca12d2752ef6f5ef7135c11ce4b6d5d0ee8bb98d8734ac2380afd
ssdeep: 3072:SlrmnIpH/lfFPUTjJCu/3kVP/1iFRanbgtHC:SlrwIzfRUj/0VP/1iibG
type: PE32 executable (GUI) Intel 80386, for MS Windows

Version Info:

LegalCopyright: Free license 2010
InternalName: schnoz
FileVersion: 1, 1, 2, 4
CompanyName: schnoz
LegalTrademarks:
ProductName: Application of schnoz
ProductVersion: 1, 1, 1, 20
FileDescription: Application of schnoz
OriginalFilename: schnoz.exe
Translation: 0x0415 0x04b0

Win32:Agent-AUAC [Trj] also known as:

GridinSoft Trojan.Ransom.Gen
Bkav W32.AIDetect.malware1
K7AntiVirus Trojan ( 00498ab51 )
Elastic malicious (high confidence)
DrWeb Trojan.Encoder.514
Cynet Malicious (score: 100)
CAT-QuickHeal Ransom.Crowti.A4
ALYac Trojan.GenericKD.1811994
Cylance Unsafe
Zillya Trojan.Blocker.Win32.21093
Sangfor Ransom.Win32.Blocker.fjsn
CrowdStrike win/malicious_confidence_90% (W)
Alibaba Ransom:Win32/Blocker.ae03550e
K7GW Trojan ( 00498ab51 )
Cybereason malicious.40136e
Baidu Win32.Trojan-Downloader.Waski.a
Cyren W32/Backdoor.KMJI-2888
Symantec ML.Attribute.HighConfidence
ESET-NOD32 Win32/Filecoder.CryptoWall.A
Zoner Trojan.Win32.25533
APEX Malicious
Avast Win32:Agent-AUAC [Trj]
Kaspersky Trojan-Ransom.Win32.Blocker.fjsn
BitDefender Trojan.GenericKD.1811994
NANO-Antivirus Trojan.Win32.Blocker.efhfps
MicroWorld-eScan Trojan.GenericKD.1811994
Tencent Win32.Trojan.Inject.Auto
Ad-Aware Trojan.GenericKD.1811994
Sophos ML/PE-A + Mal/Zbot-QL
Comodo Malware@#1p54xa760ad1e
BitDefenderTheta Gen:NN.ZexaF.34670.jq0@aOyGcUiG
VIPRE Win32.Malware!Drop
TrendMicro TROJ_CRYPWALL.YN
McAfee-GW-Edition Generic.ul
FireEye Generic.mg.19ae22940136ebc3
Emsisoft Trojan.GenericKD.1811994 (B)
SentinelOne Static AI – Suspicious PE
Jiangmin Trojan/Blocker.jmw
Webroot W32.Trojan.Gen
Avira TR/FileCoder.CO.10
eGambit Generic.Malware
Kingsoft Win32.Troj.Undef.(kcloud)
Microsoft Ransom:Win32/Crowti.A
GData Win32.Trojan.Agent.BSIY5N
TACHYON Trojan/W32.Blocker.147968.J
AhnLab-V3 Trojan/Win32.CryptoWall.R140708
McAfee Generic.ul
MAX malware (ai score=100)
VBA32 Hoax.Blocker
Panda Trj/Chgt.D
TrendMicro-HouseCall TROJ_CRYPWALL.YN
Rising Ransom.Crowti!8.37D (CLOUD)
Yandex Trojan.Blocker!bxLmrp2ChLA
Ikarus Trojan-Spy.Zbot
Fortinet W32/Kryptik.CMRA!tr
AVG Win32:Agent-AUAC [Trj]
Paloalto generic.ml
Qihoo-360 Win32/Ransom.Cryptodef.HwcBEpsA

How to remove Win32:Agent-AUAC [Trj] 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 Win32:Agent-AUAC [Trj] 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-AUAC [Trj] 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/products/

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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