Ransom:Win32/Locky.SA!MTB

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

What is Ransom:Win32/Locky.SA!MTB infection?

In this short article you will find concerning the meaning of Ransom:Win32/Locky.SA!MTB as well as its negative influence on your computer. Such ransomware are a form of malware that is specified by online frauds to demand paying the ransom money by a victim.

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In the majority of the situations, Ransom:Win32/Locky.SA!MTB ransomware will advise its victims to start funds transfer for the purpose of counteracting the amendments that the Trojan infection has actually introduced to the sufferer’s tool.

Ransom:Win32/Locky.SA!MTB Summary

These adjustments can be as complies with:

  • 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.
  • Injection (inter-process);
  • Injection (Process Hollowing);
  • 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 (8 unique times);
  • 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;
  • Executed a process and injected code into it, probably while unpacking;
  • Checks for the presence of known windows from debuggers and forensic tools;
  • 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!
  • Steals private information from local Internet browsers;
  • Network activity contains more than one unique useragent.;
  • 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.
  • Detects VirtualBox through the presence of a registry key;
  • Attempts to modify proxy settings. This trick used for inject malware into connection between browser and server;
  • Attempts to access Bitcoin/ALTCoin wallets;
  • Harvests credentials from local FTP client softwares;
  • Harvests information related to installed instant messenger clients;
  • Harvests information related to installed mail clients;
  • Attempts to create or modify system certificates;
  • Collects information to fingerprint the system. There are behavioral human characteristics that can be used to digitally identify a person to grant access to systems, devices, or data. Unlike passwords and verification codes, fingerprints are fundamental parts of user’s identities. Among the threats blocked on biometric data processing and storage systems is spyware, the malware used in phishing attacks (mostly spyware downloaders and droppers), ransomware, and Banking Trojans as posing the greatest danger.
  • Anomalous binary characteristics. This is a way of hiding virus’ code from antiviruses and virus’ analysts.
  • Ciphering the documents located on the target’s hard drive — so the victim can no more use the information;
  • Preventing routine access to the sufferer’s workstation;
Similar behavior
Related domains
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Ransom:Win32/Locky.SA!MTB

The most normal networks whereby Ransom:Win32/Locky.SA!MTB 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 a consequence of individual ending up on a source that holds a destructive software;

As quickly as the Trojan is successfully infused, it will certainly either cipher the information on the target’s computer or stop the device from working in a correct manner – while additionally placing a ransom note that states the need for the victims to effect the payment for the purpose of decrypting the files or restoring the documents system back to the first problem. In many circumstances, the ransom note will turn up when the client reboots the COMPUTER after the system has already been damaged.

Ransom:Win32/Locky.SA!MTB distribution channels.

In numerous edges of the globe, Ransom:Win32/Locky.SA!MTB grows by jumps and bounds. However, the ransom notes as well as methods of extorting the ransom money amount may vary depending on particular regional (local) setups. The ransom money notes and methods of obtaining the ransom quantity may differ depending on specific regional (local) settings.

Ransomware injection

As an example:

    Faulty alerts concerning unlicensed software program.

    In particular locations, the Trojans commonly wrongfully report having actually detected some unlicensed applications made it possible for on the sufferer’s tool. The sharp after that demands the customer to pay the ransom.

    Faulty declarations concerning illegal content.

    In nations where software piracy is less popular, this approach is not as efficient for the cyber frauds. Alternatively, the Ransom:Win32/Locky.SA!MTB popup alert may wrongly declare to be deriving from a police organization as well as will report having situated youngster porn or other illegal data on the gadget.

    Ransom:Win32/Locky.SA!MTB popup alert might incorrectly declare to be deriving from a regulation enforcement organization as well as will certainly report having situated child porn or various other unlawful information on the gadget. The alert will similarly consist of a requirement for the individual to pay the ransom.

Technical details

File Info:

crc32: CDB5DA3A
md5: 70fb5e54ff3ba4682fd382c10493ef0e
name: upload_file
sha1: 8273c8f09b281f78bfc3055603aa1f8954a39ce3
sha256: bb88b0e196c6418b7b3e20f9703cfc4bc4b7fcbe2afbb0c320abe063e1b7fc8f
sha512: 0aac50c66bdf3c30fc283865a8d4537fe4180580191f989a9e48d666ccd5e42e22ed6aeffb6a3e8f676defec7e65b9c8f9d8657b004328e27650285fa66ef07a
ssdeep: 3072:l3C/C1Csg3kxSAtb35ijMjlXOUCJWjhh29oimz4uyvNLo:l9SAtVijMRXOtJWth29ozzUFLo
type: PE32 executable (GUI) Intel 80386, for MS Windows

Version Info:

0: [No Data]

Ransom:Win32/Locky.SA!MTB also known as:

GridinSoftTrojan.Ransom.Gen
Elasticmalicious (high confidence)
ClamAVWin.Trojan.VBGeneric-8264807-0
FireEyeGeneric.mg.70fb5e54ff3ba468
McAfeeFareit-FST!70FB5E54FF3B
CylanceUnsafe
SangforMalware
K7AntiVirusTrojan ( 0056934d1 )
BitDefenderGen:Variant.Graftor.783682
K7GWTrojan ( 0056934d1 )
Cybereasonmalicious.4ff3ba
InvinceaMal/Generic-S
CyrenW32/Kryptik.BPB.gen!Eldorado
SymantecInfostealer
APEXMalicious
AvastWin32:RATX-gen [Trj]
CynetMalicious (score: 100)
KasperskyUDS:DangerousObject.Multi.Generic
NANO-AntivirusTrojan.Win32.Razy.hlkpnp
MicroWorld-eScanGen:Variant.Graftor.783682
RisingTrojan.Injector!1.C6AF (CLASSIC)
Ad-AwareGen:Variant.Graftor.783682
EmsisoftGen:Variant.Graftor.783682 (B)
F-SecureTrojan.TR/Dropper.Gen
DrWebTrojan.Siggen9.55566
ZillyaTrojan.Chapak.Win32.86089
McAfee-GW-EditionFareit-FST!70FB5E54FF3B
SophosMal/Generic-S
SentinelOneDFI – Malicious PE
JiangminTrojan.PSW.Racealer.axd
AviraTR/Dropper.Gen
MAXmalware (ai score=84)
Antiy-AVLTrojan/Win32.Chapak
MicrosoftRansom:Win32/Locky.SA!MTB
ArcabitTrojan.Graftor.DBF542
ZoneAlarmUDS:DangerousObject.Multi.Generic
GDataGen:Variant.Graftor.783682
BitDefenderThetaGen:NN.ZevbaF.34570.tnZ@aydw5WBi
ALYacGen:Variant.Graftor.783682
VBA32TScope.Trojan.VB
MalwarebytesBackdoor.NanoCore
ESET-NOD32a variant of Win32/Injector.EMLN
TencentMalware.Win32.Gencirc.10cdd799
IkarusTrojan.Win32.Krypt
eGambitUnsafe.AI_Score_95%
FortinetW32/Injector.EMPE!tr
AVGWin32:RATX-gen [Trj]
CrowdStrikewin/malicious_confidence_100% (D)
Qihoo-360HEUR/QVM03.0.A3A3.Malware.Gen

How to remove Ransom:Win32/Locky.SA!MTB 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 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 Ransom:Win32/Locky.SA!MTB 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 Ransom:Win32/Locky.SA!MTB 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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