Trojan.Mauvaise.SL1

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

What is Trojan.Mauvaise.SL1 infection?

In this post you will certainly discover about the definition of Trojan.Mauvaise.SL1 as well as its unfavorable impact on your computer system. Such ransomware are a form of malware that is elaborated by online scams to require paying the ransom by a sufferer.

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Most of the instances, Trojan.Mauvaise.SL1 virus will certainly advise its targets to launch funds move for the objective of counteracting the amendments that the Trojan infection has introduced to the sufferer’s gadget.

Trojan.Mauvaise.SL1 Summary

These modifications 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.
  • A process attempted to delay the analysis task.;
  • 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.
  • The binary likely contains encrypted or compressed data. In this case, encryption is a way of hiding virus’ code from antiviruses and virus’ analysts.
  • The executable is compressed using UPX;
  • Deletes its original binary from disk;
  • 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.
  • Creates a copy of itself;
  • Ciphering the files situated on the target’s hard drive — so the victim can no more make use of the information;
  • Preventing routine access to the sufferer’s workstation;
Similar behavior
Related domains
fk.openyourass.icuTrojan-Ransom.HydraCrypt
xdx.s4f5er4t5g1df23saadse.clubTrojan-Ransom.HydraCrypt

Trojan.Mauvaise.SL1

The most typical channels through which Trojan.Mauvaise.SL1 Ransomware Trojans are infused 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 winding up on a source that hosts a harmful software;

As soon as the Trojan is successfully injected, it will either cipher the data on the target’s computer or protect against the tool from working in a proper manner – while likewise positioning a ransom note that points out the requirement for the sufferers to impact the settlement for the function of decrypting the records or restoring the file system back to the first condition. In most instances, the ransom money note will certainly come up when the client restarts the COMPUTER after the system has actually already been damaged.

Trojan.Mauvaise.SL1 circulation channels.

In various edges of the world, Trojan.Mauvaise.SL1 expands by jumps as well as bounds. Nevertheless, the ransom notes and also techniques of obtaining the ransom money quantity might vary relying on particular regional (local) setups. The ransom notes and also tricks of obtaining the ransom money quantity may vary depending on specific regional (local) settings.

Ransomware injection

As an example:

    Faulty alerts concerning unlicensed software application.

    In particular areas, the Trojans often wrongfully report having actually spotted some unlicensed applications enabled on the victim’s tool. The alert after that demands the individual to pay the ransom.

    Faulty statements regarding illegal web content.

    In nations where software piracy is much less popular, this technique is not as reliable for the cyber scams. Additionally, the Trojan.Mauvaise.SL1 popup alert may falsely declare to be originating from a police organization and will report having located child pornography or other unlawful data on the tool.

    Trojan.Mauvaise.SL1 popup alert might wrongly claim to be deriving from a law enforcement establishment as well as will certainly report having located kid pornography or various other unlawful data on the device. The alert will likewise include a need for the individual to pay the ransom.

Technical details

File Info:

crc32: B2B182B7
md5: cd6249c0eae4d3d0b63de80ee6e22e01
name: download.exe
sha1: 1904455d4d7641b5cbb9062b62cd77dbe1cf4b72
sha256: 31dcda7af03c4d887cc77e1ccc8162e459c7e4127cdf9c39964e55f86988d6f7
sha512: 0dc389739859ccd7035920449fc298f724a2bd1d5ea5363dfb03ca0de7fc6e183d67cc3dab092ff784e19555c27903713e4f81920ae9cbe5faf53c6197d9fe80
ssdeep: 1536:RgiCmqUA6ekUWmwZzCIEfe4ZmszRkFMMuqiYisHNuvFzXLfJcn6Yss4muZjA:xqsUaZz5ESmSMnUNSFviLEm0
type: PE32 executable (GUI) Intel 80386, for MS Windows, UPX compressed

Version Info:

0: [No Data]

Trojan.Mauvaise.SL1 also known as:

GridinSoftTrojan.Ransom.Gen
DrWebTrojan.DownLoader25.10311
MicroWorld-eScanGen:Trojan.Downloader.fmGfayOvMkcj
CAT-QuickHealTrojan.Mauvaise.SL1
McAfeeGenericRXIW-DU!5F2C130B9450
SangforMalware
BitDefenderGen:Trojan.Downloader.fmGfayOvMkcj
Cybereasonmalicious.0eae4d
TrendMicroBackdoor.Win32.ZEGOST.SMS
BitDefenderThetaGen:NN.ZexaF.33558.fmGfayOvMkcj
CyrenW32/Blackmoon.M.gen!Eldorado
SymantecML.Attribute.HighConfidence
APEXMalicious
Paloaltogeneric.ml
ClamAVWin.Dropper.Gh0stRAT-6989861-0
KasperskyTrojan.Win32.Siscos.wgv
RisingBackdoor.Zegost!8.177 (TFE:5:GhyWtHWPdCV)
Ad-AwareGen:Trojan.Downloader.fmGfayOvMkcj
SophosTroj/Agent-AWJO
ComodoPacked.Win32.MUPX.Gen@24tbus
F-SecureHeuristic.HEUR/AGEN.1014775
Invinceaheuristic
McAfee-GW-EditionBehavesLike.Win32.Trojan.nc
Trapminemalicious.moderate.ml.score
FireEyeGeneric.mg.cd6249c0eae4d3d0
EmsisoftGen:Trojan.Downloader.fmGfayOvMkcj (B)
SentinelOneDFI – Malicious PE
F-ProtW32/Blackmoon.M.gen!Eldorado
JiangminTrojan.Siscos.kx
WebrootW32.Trojan.Gen
AviraHEUR/AGEN.1014775
MicrosoftVirTool:Win32/CeeInject.SN!bit
Endgamemalicious (moderate confidence)
ArcabitTrojan.Downloader.fmGfayOvMkcj
ZoneAlarmTrojan.Win32.Siscos.wgv
GDataWin32.Trojan.Agent.WP
AhnLab-V3Trojan/Win32.Kryptik.R265106
Acronissuspicious
VBA32BScope.Backdoor.BlackHole
ALYacGen:Trojan.Downloader.fmGfayOvMkcj
MAXmalware (ai score=89)
CylanceUnsafe
PandaTrj/Genetic.gen
ESET-NOD32a variant of Win32/TrojanDownloader.Tiny.NQG
TrendMicro-HouseCallBackdoor.Win32.ZEGOST.SMS
IkarusTrojan-Ransom.HydraCrypt
eGambitUnsafe.AI_Score_99%
FortinetW32/Kryptik.FHSF!tr
AVGWin32:DropperX-gen [Drp]
AvastWin32:DropperX-gen [Drp]
CrowdStrikewin/malicious_confidence_100% (D)
Qihoo-360Win32/Trojan.ee5

How to remove Trojan.Mauvaise.SL1 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 install-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.Mauvaise.SL1 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 Trojan.Mauvaise.SL1 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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