Mal/Wanna-A

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

What is Mal/Wanna-A infection?

In this short article you will discover concerning the meaning of Mal/Wanna-A and its adverse impact on your computer system. Such ransomware are a form of malware that is specified by on the internet fraudulences to demand paying the ransom by a sufferer.

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Most of the situations, Mal/Wanna-A infection will certainly instruct its targets to start funds transfer for the objective of reducing the effects of the changes that the Trojan infection has actually introduced to the target’s device.

Mal/Wanna-A Summary

These alterations can be as complies with:

  • 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.;
  • Attempts to connect to a dead IP:Port (474 unique times);
  • 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.

  • A process created a hidden window;
  • 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.
  • HTTP traffic contains suspicious features which may be indicative of malware related traffic;
  • Performs some HTTP requests;
  • Attempts to repeatedly call a single API many times in order to delay analysis time. This significantly complicates the work of the virus analyzer. Typical malware tactics!
  • 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.
  • EternalBlue behavior. Allows cyber threat actors to remotely execute arbitrary code and gain access to a network by sending specially crafted packets.

    This is has made EternalBlue trick popular with various malware, such as Trickbot, a modular banking trojan, as well as CoinMiner and WannaMine, crypto miners that use the EternalBlue exploit in order to gain access to computing power to mine cryptocurrencies.

  • Attempts to modify proxy settings. This trick used for inject malware into connection between browser and server;
  • Generates some ICMP traffic;
  • Anomalous binary characteristics. This is a way of hiding virus’ code from antiviruses and virus’ analysts.
  • Ciphering the records found on the target’s hard drive — so the sufferer can no longer make use of the data;
  • Preventing normal 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.
Similar behavior
Related domains
z.whorecord.xyz Trojan-Ransom.Win32.Wanna!O
www.iuqerfsodp9ifjaposdfjhgosurijfaewrwergwea.com Trojan-Ransom.Win32.Wanna!O
a.tomx.xyz Trojan-Ransom.Win32.Wanna!O

Mal/Wanna-A

The most typical networks whereby Mal/Wanna-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 an effect of customer ending up on a source that hosts a destructive software application;

As quickly as the Trojan is efficiently injected, it will certainly either cipher the data on the sufferer’s computer or avoid the tool from functioning in a proper way – while also positioning a ransom note that points out the demand for the targets to effect the settlement for the function of decrypting the files or bring back the data system back to the first problem. In most circumstances, the ransom note will certainly show up when the client reboots the COMPUTER after the system has already been harmed.

Mal/Wanna-A circulation channels.

In different edges of the world, Mal/Wanna-A grows by leaps and also bounds. However, the ransom notes as well as techniques of extorting the ransom money amount might vary depending upon specific regional (regional) settings. The ransom money notes and tricks of extorting the ransom money quantity might differ depending on specific neighborhood (local) settings.

Ransomware injection

As an example:

    Faulty informs about unlicensed software application.

    In specific areas, the Trojans often wrongfully report having actually identified some unlicensed applications made it possible for on the target’s device. The sharp after that demands the user to pay the ransom.

    Faulty declarations regarding prohibited material.

    In countries where software application piracy is much less prominent, this method is not as efficient for the cyber fraudulences. Additionally, the Mal/Wanna-A popup alert may incorrectly declare to be stemming from a law enforcement organization and also will report having located child pornography or other illegal data on the gadget.

    Mal/Wanna-A popup alert may falsely claim to be acquiring from a regulation enforcement institution and will certainly report having located child porn or other illegal information on the gadget. The alert will in a similar way consist of a need for the customer to pay the ransom.

Technical details

File Info:

crc32: F6FA0994
md5: 1545814f63efd44cda7bbab2cdf178b7
name: tmp5bhh405u
sha1: 63be4f3a05ef81f9352140cff304dd455dcb25f6
sha256: 109e05078d0797bfc43c17500ad822382aaf01169151052349025944f3433f07
sha512: aa8750693662b0b6eef06e5752c6bacfadf089757242f21c492f6a5f21bc5082a7a750131a9fce7961a29f7ce1bc2cf5836eb5717270a14c3c4f8fb83ab3add6
ssdeep: 98304:+DqPoBhz1aRxcSUDk36SAsbkV7HXEaMoAa54:+DqPe1Cxcxk3ZAu+
type: PE32 executable (DLL) (GUI) Intel 80386, for MS Windows

Version Info:

0: [No Data]

Mal/Wanna-A also known as:

GridinSoft Trojan.Ransom.Gen
Bkav W32.AIDetectVM.malware
MicroWorld-eScan Trojan.GenericKD.40267082
CMC Trojan-Ransom.Win32.Wanna!O
CAT-QuickHeal Ransom.WannaCrypt.S1670344
McAfee GenericRXFL-OG!1545814F63EF
Cylance Unsafe
Zillya Exploit.CVE.Win32.1766
Sangfor Malware
CrowdStrike win/malicious_confidence_100% (D)
Alibaba Ransom:Win32/CVE-2017-0147.619a3831
K7GW Trojan ( 00557fc41 )
K7AntiVirus Trojan ( 00557fc41 )
Arcabit Trojan.Generic.D2666D4A
Invincea heuristic
Baidu Win32.Worm.Rbot.a
Cyren W32/WannaCrypt.A.gen!Eldorado
Symantec Ransom.Wannacry
ESET-NOD32 Win32/Exploit.CVE-2017-0147.A
APEX Malicious
Paloalto generic.ml
ClamAV Win.Ransomware.WannaCry-6313787-0
GData Trojan.GenericKD.40267082
Kaspersky Trojan-Ransom.Win32.Wanna.m
BitDefender Trojan.GenericKD.40267082
NANO-Antivirus Trojan.Win32.Wanna.epxkni
ViRobot Trojan.Win32.WannaCry.5267459
Avast Sf:WNCryLdr-A [Trj]
Tencent Trojan-Ransom.Win32.Wanna.m
Ad-Aware Trojan.GenericKD.40267082
Sophos Mal/Wanna-A
Comodo TrojWare.Win32.Ransom.WannaCry.AB@75ge5e
F-Secure Trojan.TR/Ransom.Gen
DrWeb Trojan.Encoder.11432
VIPRE Trojan.Win32.Generic!BT
TrendMicro Ransom_WCRY.SMALYM
McAfee-GW-Edition BehavesLike.Win32.RansomWannaCry.tm
MaxSecure Trojan-Ransom.Win32.Wanna.m
Trapmine malicious.high.ml.score
FireEye Generic.mg.1545814f63efd44c
Emsisoft Trojan.GenericKD.40267082 (B)
SentinelOne DFI – Malicious PE
F-Prot W32/S-2b52222d!Eldorado
Jiangmin Trojan.Wanna.k
Webroot W32.Trojan.Gen
Avira TR/Ransom.Gen
Antiy-AVL Trojan[Ransom]/Win32.Wanna
Microsoft Ransom:Win32/CVE-2017-0147.A
Endgame malicious (high confidence)
AegisLab Trojan.Win32.Wanna.u
ZoneAlarm Trojan-Ransom.Win32.Wanna.m
TACHYON Ransom/W32.WannaCry.5267459
AhnLab-V3 Trojan/Win32.WannaCryptor.R200894
Acronis suspicious
VBA32 Hoax.Wanna
ALYac Trojan.GenericKD.40267082
MAX malware (ai score=100)
Malwarebytes Ransom.WannaCrypt
TrendMicro-HouseCall Ransom_WCRY.SMALYM
Rising Ransom.WanaCrypt!1.AAED (C64:YzY0OmipJIH8AO+V)
Yandex Exploit.CVE-2017-0147!
Ikarus Exploit.CVE-2017-0147
eGambit Trojan.Generic
Fortinet W32/WannaCryptor.H!tr.ransom
BitDefenderTheta Gen:NN.ZedlaF.34096.@x5@aC0WZ7ei
AVG Sf:WNCryLdr-A [Trj]
Panda Trj/CI.A
Qihoo-360 Win32/Worm.WannaCrypt.W

How to remove Mal/Wanna-A virus?

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.

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 Mal/Wanna-A 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 Mal/Wanna-A 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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