Trojan:Win32/Wacatac.B!rfn

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

What is Trojan:Win32/Wacatac.B!rfn infection?

In this post you will certainly locate about the definition of Trojan:Win32/Wacatac.B!rfn and its negative effect on your computer. Such ransomware are a type of malware that is elaborated by on-line frauds to require paying the ransom by a victim.

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In the majority of the cases, Trojan:Win32/Wacatac.B!rfn virus will certainly advise its sufferers to initiate funds move for the objective of counteracting the changes that the Trojan infection has presented to the victim’s tool.

Trojan:Win32/Wacatac.B!rfn Summary

These adjustments can be as adheres to:

  • At least one process apparently crashed during execution;
  • Attempts to connect to a dead IP:Port (1 unique times);
  • Possible date expiration check, exits too soon after checking local time;
  • 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.

  • Drops a binary and executes it. Trojan-Downloader installs itself to the system and waits until an Internet connection becomes available to connect to a remote server or website in order to download additional malware onto the infected computer.
  • Unconventionial binary language: Chinese (Simplified);
  • Unconventionial language used in binary resources: Chinese (Simplified);
  • The executable is compressed using UPX;
  • 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 system manufacturer, likely for anti-virtualization;
  • Creates a copy of itself;
  • Ciphering the records situated on the victim’s hard disk — so the target can no more use the information;
  • 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.

Trojan:Win32/Wacatac.B!rfn

One of the most typical channels through which Trojan:Win32/Wacatac.B!rfn Ransomware are infused are:

  • By ways of phishing e-mails;
  • As an effect of user winding up on a source that hosts a malicious software;

As quickly as the Trojan is effectively injected, it will certainly either cipher the data on the victim’s computer or protect against the tool from working in a correct manner – while also putting a ransom note that mentions the demand for the victims to effect the repayment for the objective of decrypting the papers or restoring the data system back to the first condition. In a lot of instances, the ransom money note will come up when the customer restarts the COMPUTER after the system has actually already been damaged.

Trojan:Win32/Wacatac.B!rfn circulation channels.

In various corners of the world, Trojan:Win32/Wacatac.B!rfn grows by leaps as well as bounds. Nevertheless, the ransom notes and methods of obtaining the ransom money quantity may differ depending upon particular regional (local) setups. The ransom notes and tricks of obtaining the ransom money quantity might vary depending on certain neighborhood (regional) setups.

Ransomware injection

For example:

    Faulty signals concerning unlicensed software application.

    In certain areas, the Trojans commonly wrongfully report having discovered some unlicensed applications allowed on the victim’s device. The alert after that demands the customer to pay the ransom.

    Faulty declarations about prohibited web content.

    In countries where software program piracy is less preferred, this approach is not as reliable for the cyber fraudulences. Additionally, the Trojan:Win32/Wacatac.B!rfn popup alert might falsely assert to be deriving from a police organization as well as will certainly report having situated youngster porn or other illegal information on the tool.

    Trojan:Win32/Wacatac.B!rfn popup alert may wrongly claim to be acquiring from a regulation enforcement institution and will report having situated kid pornography or various other prohibited data on the gadget. The alert will likewise contain a requirement for the customer to pay the ransom money.

Technical details

File Info:

crc32: FCEAE047
md5: e86ae7706ea852a10147ece5ca033950
name: E86AE7706EA852A10147ECE5CA033950.mlw
sha1: 9f21b6b344378db014d418a97db238e44a5978d6
sha256: bddc2ad2297db5c454dd6c96c9062720962123eb868d882e8d21b697efdcfea5
sha512: d7325dd0a673f4f67c593092fd8d9e4e4ad1b595e7b9203ceb3c8a6f218c150af35aec62e15f75c880f3886ba584f6c32541dc5198ab51f438e6141e6222aabd
ssdeep: 6144:zI0D9eonhSYPwbfG6wYdY3Y40gdgdUddwdddd9N7vA+adTxJVvshod6ddYd/d5d:zIO9e2hSYPwTGgAHL6rRX
type: PE32 executable (GUI) Intel 80386, for MS Windows, UPX compressed

Version Info:

LegalCopyright: 360.cn
InternalName: 360Safe.exe
FileVersion: 12, 0, 0, 1041
CompanyName: 360.cn
ProductName: 360x5b89x5168x536bx58eb x4e3bx7a0bx5e8fx6a21x5757
ProductVersion: 12, 0, 0, 1041
FileDescription: 360x5b89x5168x536bx58eb x4e3bx7a0bx5e8fx6a21x5757
OriginalFilename: 360Safe.exe
Translation: 0x0804 0x04b0

Trojan:Win32/Wacatac.B!rfn also known as:

GridinSoft Trojan.Ransom.Gen
Bkav W32.AIDetect.malware2
Elastic malicious (high confidence)
DrWeb Trojan.DownLoader18.16955
MicroWorld-eScan Gen:Heur.Mint.Zard.30
ALYac Gen:Heur.Mint.Zard.30
Cylance Unsafe
VIPRE Trojan.Win32.Generic!BT
Sangfor Trojan.Win32.Save.a
K7AntiVirus Trojan ( 004d4e7a1 )
BitDefender Gen:Heur.Mint.Zard.30
K7GW Trojan ( 004d4e7a1 )
Cybereason malicious.06ea85
BitDefenderTheta Gen:NN.ZexaF.34590.ymKfaKfBVCkj
Cyren W32/Nitol.K.gen!Eldorado
Symantec Backdoor.Nitol
TotalDefense Win32/PackedBaidu
TrendMicro-HouseCall DDoS.Win32.NITOL.SMG
Avast Win32:Dh-A [Heur]
ClamAV Win.Malware.Nitol-6802818-0
Kaspersky Trojan-Ransom.Win32.PornoBlocker.ejtx
Alibaba Ransom:Win32/PornoBlocker.6bf2704d
NANO-Antivirus Trojan.Win32.MicroFake.cchebz
AegisLab Trojan.Win32.PornoBlocker.4!c
Rising Ransom.PornoBlocker!8.24E (CLOUD)
Ad-Aware Gen:Heur.Mint.Zard.30
Emsisoft Gen:Heur.Mint.Zard.30 (B)
Comodo TrojWare.Win32.Nitol.KA@6cq5hu
F-Secure Trojan.TR/ATRAPS.hrva.12
Baidu Win32.Trojan.ServStart.ax
Zillya Trojan.PornoBlocker.Win32.13032
TrendMicro DDoS.Win32.NITOL.SMG
McAfee-GW-Edition BehavesLike.Win32.Downloader.ft
FireEye Generic.mg.e86ae7706ea852a1
Sophos Mal/Generic-R
Ikarus Trojan.Win32.MicroFake
Jiangmin Trojan.Generic.cpukn
Avira TR/ATRAPS.hrva.12
Antiy-AVL Trojan[Ransom]/Win32.PornoBlocker
Microsoft Trojan:Win32/Wacatac.B!rfn
Arcabit Trojan.Mint.Zard.30
SUPERAntiSpyware Ransom.PornoBlocker/Variant
ZoneAlarm Trojan-Ransom.Win32.PornoBlocker.ejtx
GData Gen:Heur.Mint.Zard.30
Cynet Malicious (score: 100)
AhnLab-V3 Trojan/Win32.RL_PornoBlocker.R280780
McAfee GenericRXHV-ZE!E86AE7706EA8
MAX malware (ai score=100)
VBA32 BScope.Trojan.Scar
Malwarebytes Malware.Heuristic.1003
Panda Trj/CI.A
APEX Malicious
ESET-NOD32 Win32/Agent.RMM
Tencent Trojan.Win32.Lapka.bw
Yandex Trojan.GenAsa!H41PVEbKGsY
SentinelOne Static AI – Malicious PE
eGambit Unsafe.AI_Score_99%
Fortinet W32/Agent.RMM!tr
AVG Win32:Dh-A [Heur]
Paloalto generic.ml
Qihoo-360 Win32/Dropper.LPK.F

How to remove Trojan:Win32/Wacatac.B!rfn ransomware?

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/Wacatac.B!rfn 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

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If the guide doesn’t help you to remove Trojan:Win32/Wacatac.B!rfn 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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