Win32/TrojanDownloader.Wauchos.A

What is Win32/TrojanDownloader.Wauchos.A infection?

In this article you will certainly locate about the meaning of Win32/TrojanDownloader.Wauchos.A as well as its adverse influence on your computer. Such ransomware are a kind of malware that is elaborated by online scams to require paying the ransom by a target.

In the majority of the situations, Win32/TrojanDownloader.Wauchos.A ransomware will advise its sufferers to launch funds move for the purpose of neutralizing the modifications that the Trojan infection has presented to the victim’s tool.

Win32/TrojanDownloader.Wauchos.A Summary

These modifications can be as complies with:

  • Injection (inter-process);
  • Injection (Process Hollowing);
  • 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.
  • 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.
  • A process attempted to delay the analysis task.;
  • Reads data out of its own binary image. The trick that allows the malware to read data out of your computer’s memory.

    Everything you run, type, or click on your computer goes through the memory. This includes passwords, bank account numbers, emails, and other confidential information. With this vulnerability, there is the potential for a malicious program to read that data.

  • Executed a process and injected code into it, probably while unpacking;
  • Detects Sandboxie through the presence of a library;
  • Deletes its original binary from disk;
  • Mimics the file times of a Windows system file;
  • 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.
  • Checks the presence of disk drives in the registry, possibly for anti-virtualization;
  • Creates a copy of itself;
  • Anomalous binary characteristics. This is a way of hiding virus’ code from antiviruses and virus’ analysts.
  • Ciphering the records located on the target’s hard disk drive — so the sufferer can no more make use of the information;
  • Preventing routine access 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/TrojanDownloader.Wauchos.A

The most normal channels through which Win32/TrojanDownloader.Wauchos.A Ransomware are injected are:

  • By methods of phishing e-mails. Email phishing is a cyber attack that uses disguised email as a goal is to trick the recipient into believing that the message is something they want or need — a request from their bank, for instance, or a note from someone in their company — and to click a link for download a malware.
  • As a repercussion of individual ending up on a resource that organizes a harmful software;

As soon as the Trojan is successfully infused, it will either cipher the data on the sufferer’s PC or prevent the tool from working in a proper manner – while likewise placing a ransom money note that points out the demand for the victims to impact the payment for the purpose of decrypting the files or recovering the data system back to the first condition. In many circumstances, the ransom note will certainly show up when the client restarts the PC after the system has currently been damaged.

Win32/TrojanDownloader.Wauchos.A circulation networks.

In various edges of the globe, Win32/TrojanDownloader.Wauchos.A grows by jumps and bounds. However, the ransom notes and techniques of obtaining the ransom quantity may differ relying on particular regional (local) settings. The ransom notes and also techniques of obtaining the ransom money quantity may differ depending on certain regional (regional) setups.

Ransomware injection

As an example:

    Faulty notifies concerning unlicensed software program.

    In certain areas, the Trojans typically wrongfully report having found some unlicensed applications enabled on the sufferer’s tool. The sharp then demands the customer to pay the ransom.

    Faulty statements about unlawful web content.

    In nations where software program piracy is less preferred, this method is not as reliable for the cyber fraudulences. Alternatively, the Win32/TrojanDownloader.Wauchos.A popup alert may falsely assert to be originating from a law enforcement institution as well as will report having located kid porn or various other unlawful information on the tool.

    Win32/TrojanDownloader.Wauchos.A popup alert may incorrectly assert to be acquiring from a legislation enforcement organization and also will report having located kid pornography or other illegal information on the tool. The alert will similarly include a requirement for the user to pay the ransom money.

Technical details

File Info:

crc32: EB170070md5: 559172bec7c1300d18d8fae52004032cname: 559172BEC7C1300D18D8FAE52004032C.mlwsha1: 63bd513653caa4ee05cca28527712dfe9d6d715fsha256: 88cd967972d18f785bcb816b0da900c85e2f2a7d978006109d183353c2d4b767sha512: b19462f8b4097ed982f5fbdc0b7b500e4f86c3abdb6afaba4bf1fb3b35e45516f91f16cdbb5412792a60cca0ba60049cbeaf2b86394851fa2f85e2d93c0b1f08ssdeep: 3072:9c79LB8NV5xsH2WffLq8g5kUIzDPiFcuy6XIzoaYD7NM+r928Ki4HGibzT:9y99KGffMkUIzzqc8I4dZ48Ki4Hftype: PE32 executable (GUI) Intel 80386, for MS Windows, Nullsoft Installer self-extracting archive

Version Info:

ProductName: AgyjAWFileVersion: 19.19.14.12CompanyName: bpxTJPvTranslation: 0x0000 0x04e4

Win32/TrojanDownloader.Wauchos.A also known as:

GridinSoft Trojan.Ransom.Gen
Bkav W32.AIDetect.malware1
K7AntiVirus Trojan-Downloader ( 0055e3da1 )
Elastic malicious (high confidence)
DrWeb BackDoor.Comet.884
Cynet Malicious (score: 100)
Cylance Unsafe
Zillya Downloader.Wauchos.Win32.3372
CrowdStrike win/malicious_confidence_60% (W)
Alibaba Ransom:Win32/Blocker.4b627b28
K7GW Trojan-Downloader ( 0055e3da1 )
Cybereason malicious.ec7c13
Symantec ML.Attribute.HighConfidence
ESET-NOD32 Win32/TrojanDownloader.Wauchos.A
APEX Malicious
Avast Win32:Malware-gen
Kaspersky Trojan-Ransom.Win32.Blocker.dhra
BitDefender Zum.Androm.1
NANO-Antivirus Trojan.Win32.Blocker.csxjxy
MicroWorld-eScan Zum.Androm.1
Tencent Win32.Trojan.Blocker.Swaz
Sophos Mal/Generic-S
Comodo Malware@#10a6n3thef6uw
BitDefenderTheta Gen:NN.ZedlaF.34608.pO4@ay9v55b
VIPRE Trojan.Win32.Generic!BT
TrendMicro TROJ_SPNR.35BH14
McAfee-GW-Edition BehavesLike.Win32.GenDownloader.cc
FireEye Generic.mg.559172bec7c1300d
Emsisoft Zum.Androm.1 (B)
Webroot W32.Trojan.Genkd
Avira HEUR/AGEN.1132688
Kingsoft Win32.Troj.Undef.(kcloud)
Microsoft Worm:Win32/Gamarue
AegisLab Trojan.Win32.Blocker.j!c
GData Zum.Androm.1
AhnLab-V3 Trojan/Win32.Tepfer.C201589
McAfee Artemis!559172BEC7C1
MAX malware (ai score=89)
VBA32 TrojanRansom.Blocker
Panda Trj/CI.A
TrendMicro-HouseCall TROJ_SPNR.35BH14
Yandex Trojan.Injector!2hy6kgxGbOs
SentinelOne Static AI – Suspicious PE
Fortinet W32/Blocker.DHRA!tr
AVG Win32:Malware-gen
Paloalto generic.ml
Qihoo-360 Win32/Ransom.Blocker.HyoDpb8A

How to remove Win32/TrojanDownloader.Wauchos.A 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

Run the setup file.

Run Setup.exe
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 Scanning

Click on “Clean Now”.

GridinSoft Anti-Malware Scan Result

Are Your Protected?

Full version of GridinSoft

If the guide doesn’t help you to remove Win32/TrojanDownloader.Wauchos.A you can always ask me in the comments for getting help.

References

    About the author

    Robert Bailey

    Security engineer focused on malware behavior, removal workflows, and Windows hardening. Robert reviews threat articles for practical accuracy, checking detection names, symptoms, and cleanup steps before publication.

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