Trojan.Multi

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

What is Trojan.Multi infection?

In this article you will certainly locate about the definition of Trojan.Multi and its unfavorable influence on your computer system. Such ransomware are a type of malware that is specified by online frauds to demand paying the ransom by a victim.

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Most of the cases, Trojan.Multi virus will instruct its targets to launch funds transfer for the function of counteracting the amendments that the Trojan infection has introduced to the target’s tool.

Trojan.Multi Summary

These adjustments 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.
  • 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.
  • Unconventionial language used in binary resources: Nepali;
  • The binary likely contains encrypted or compressed data. In this case, encryption is a way of hiding virus’ code from antiviruses and virus’ analysts.
  • 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.
  • Network activity detected but not expressed in API logs. Microsoft built an API solution right into its Windows operating system it reveals network activity for all apps and programs that ran on the computer in the past 30-days. This malware hides network activity.
  • Creates a copy of itself;
  • Anomalous binary characteristics. This is a way of hiding virus’ code from antiviruses and virus’ analysts.
  • Ciphering the documents found on the sufferer’s hard drive — so the target can no more make use of the information;
  • Preventing normal accessibility to the sufferer’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.Multi

The most common networks whereby Trojan.Multi 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 consequence of user ending up on a resource that holds a destructive software;

As soon as the Trojan is efficiently injected, it will certainly either cipher the data on the sufferer’s PC or protect against the gadget from operating in a proper fashion – while also positioning a ransom money note that mentions the requirement for the targets to impact the repayment for the function of decrypting the records or restoring the file system back to the initial condition. In many circumstances, the ransom money note will turn up when the customer restarts the COMPUTER after the system has already been damaged.

Trojan.Multi distribution networks.

In various corners of the globe, Trojan.Multi expands by jumps and bounds. However, the ransom money notes and methods of extorting the ransom quantity might differ depending on particular local (local) settings. The ransom money notes as well as tricks of extorting the ransom amount may differ depending on particular local (regional) settings.

Ransomware injection

As an example:

    Faulty notifies about unlicensed software.

    In particular locations, the Trojans frequently wrongfully report having actually spotted some unlicensed applications made it possible for on the victim’s device. The sharp after that demands the user to pay the ransom money.

    Faulty declarations concerning illegal web content.

    In countries where software program piracy is much less popular, this method is not as effective for the cyber fraudulences. Alternatively, the Trojan.Multi popup alert may wrongly claim to be stemming from a police organization and will certainly report having located youngster porn or other prohibited data on the gadget.

    Trojan.Multi popup alert might falsely claim to be acquiring from a legislation enforcement organization and will report having located youngster pornography or other prohibited data on the gadget. The alert will likewise consist of a need for the customer to pay the ransom.

Technical details

File Info:

crc32: 5133A495
md5: d0e3bc863f080425adbac3f31fe300b4
name: socks777amx.exe
sha1: 83c0972ff1306fe362ab2c5add1d9e463949d121
sha256: 4c8dfd813ec722c756920268b673dcdda7d2fda3ccaca85312b91565fb9c0690
sha512: 23ab92122535c2d7938164f0264013c9ed83f303d3b4db1193799ebc85aee890ae77190b3a4b2e67fb85fff88f21c0540caf254747d7ec18c65bca54caeb244f
ssdeep: 3072:G2vTaB56Eki+kF9fWbtOPtHYF7O44LwqXKBN/dMmezNSshMmE:hvWb6p4F9+OPt4F7/4LmgQv
type: PE32 executable (GUI) Intel 80386, for MS Windows

Version Info:

0: [No Data]

Trojan.Multi also known as:

GridinSoftTrojan.Ransom.Gen
BkavW32.AIDetectVM.malware1
MicroWorld-eScanTrojan.GenericKD.42125680
CAT-QuickHealTrojan.Multi
McAfeeRDN/Generic.grp
CylanceUnsafe
AegisLabTrojan.Win32.Agent.4!c
SangforMalware
K7AntiVirusRiskware ( 0040eff71 )
BitDefenderTrojan.GenericKD.42125680
K7GWRiskware ( 0040eff71 )
TrendMicroTrojan.Win32.ZPEVDO.USXVPLJ19
BitDefenderThetaGen:NN.ZexaF.33558.mSW@aitdGxbG
SymantecTrojan.Gen.2
TrendMicro-HouseCallTrojan.Win32.ZPEVDO.USXVPLJ19
ClamAVWin.Ransomware.Glupteba-7458825-1
GDataTrojan.GenericKD.42125680
KasperskyTrojan.Win32.Agent.xacwdi
NANO-AntivirusTrojan.Win32.Kryptik.gmfgcg
RisingTrojan.Kryptik!8.8 (TFE:5:Bl08U0TfcQD)
Ad-AwareTrojan.GenericKD.42125680
SophosMal/Generic-S
F-SecureTrojan.TR/AD.Coroxy.uppvd
DrWebTrojan.MulDrop11.31464
ZillyaTrojan.Agent.Win32.1216449
Invinceaheuristic
McAfee-GW-EditionBehavesLike.Win32.Generic.dh
FireEyeGeneric.mg.d0e3bc863f080425
EmsisoftTrojan.GenericKD.42125680 (B)
APEXMalicious
CyrenW32/Trojan.XATT-4790
JiangminTrojan.Agent.cmnf
WebrootW32.Trojan.GenKD
AviraTR/AD.Coroxy.uppvd
Antiy-AVLTrojan/Win32.Predator
Endgamemalicious (high confidence)
ArcabitTrojan.Generic.D282C970
ZoneAlarmTrojan.Win32.Agent.xacwdi
MicrosoftTrojan:Win32/Predator.PVD!MTB
AhnLab-V3Trojan/Win32.MalPe.R304205
Acronissuspicious
VBA32Trojan.Agent
ALYacTrojan.GenericKD.42125680
MAXmalware (ai score=100)
MalwarebytesTrojan.MalPack.GS.Generic
PandaTrj/GdSda.A
ESET-NOD32a variant of Win32/Kryptik.GZOP
IkarusTrojan.Coroxy
FortinetW32/Kryptik.EIQU!tr
AVGWin32:CrypterX-gen [Trj]
AvastWin32:CrypterX-gen [Trj]
CrowdStrikewin/malicious_confidence_90% (W)
Qihoo-360HEUR/QVM10.2.F259.Malware.Gen

How to remove Trojan.Multi 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

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.Multi 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 Trojan.Multi 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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