Ransom:Win32/Stampado.A

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

What is Ransom:Win32/Stampado.A infection?

In this post you will certainly find regarding the meaning of Ransom:Win32/Stampado.A and its unfavorable effect on your computer system. Such ransomware are a form of malware that is elaborated by online fraudulences to require paying the ransom money by a sufferer.

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Most of the instances, Ransom:Win32/Stampado.A virus will certainly advise its sufferers to launch funds transfer for the objective of reducing the effects of the modifications that the Trojan infection has presented to the victim’s device.

Ransom:Win32/Stampado.A Summary

These modifications 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.
  • 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.
  • At least one IP Address, Domain, or File Name was found in a crypto call;
  • Expresses interest in specific running processes;
  • 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.
  • The binary likely contains encrypted or compressed data. In this case, encryption is a way of hiding virus’ code from antiviruses and virus’ analysts.
  • Uses Windows utilities for basic functionality;
  • 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.
  • Ciphering the records situated on the target’s hard disk — so the sufferer can no more use the information;
  • 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.

Ransom:Win32/Stampado.A

The most regular networks where Ransom:Win32/Stampado.A Trojans are infused are:

  • By means of phishing e-mails;
  • As a repercussion of individual ending up on a resource that organizes a destructive software;

As soon as the Trojan is efficiently infused, it will either cipher the information on the victim’s computer or stop the tool from functioning in a proper way – while additionally placing a ransom money note that states the requirement for the sufferers to effect the settlement for the objective of decrypting the papers or recovering the file system back to the initial condition. In most circumstances, the ransom note will turn up when the customer reboots the COMPUTER after the system has actually already been harmed.

Ransom:Win32/Stampado.A distribution networks.

In numerous edges of the world, Ransom:Win32/Stampado.A grows by leaps and bounds. Nevertheless, the ransom money notes and also methods of extorting the ransom amount may differ depending upon specific neighborhood (regional) settings. The ransom notes and also methods of obtaining the ransom amount may differ depending on particular neighborhood (regional) settings.

Ransomware injection

As an example:

    Faulty signals concerning unlicensed software application.

    In specific areas, the Trojans typically wrongfully report having identified some unlicensed applications made it possible for on the sufferer’s device. The sharp after that requires the individual to pay the ransom money.

    Faulty statements regarding illegal content.

    In countries where software application piracy is less preferred, this approach is not as effective for the cyber scams. Additionally, the Ransom:Win32/Stampado.A popup alert may wrongly claim to be originating from a police organization and will report having situated child porn or other prohibited data on the device.

    Ransom:Win32/Stampado.A popup alert might wrongly claim to be deriving from a law enforcement establishment as well as will report having located kid porn or various other prohibited information on the tool. The alert will similarly include a requirement for the user to pay the ransom.

Technical details

File Info:

crc32: 9EA54F35
md5: 2d4648e590cca51a374dbfdf5c7b898c
name: 2D4648E590CCA51A374DBFDF5C7B898C.mlw
sha1: a5ecbaca489c48573bddada9db1a0064748f9496
sha256: 27289a568e6f4ef7b862ba5a943b0d1a9c7b7c5276cbc494704ee242d7888e5c
sha512: c474912629b7c602420cde4335d6315379becaf9922d4c94f581653b9ded8e685bda970e166cfa0185627d300fcd9cfee13c83a09370ea222d8fa40be68060f4
ssdeep: 24576:hCdxte/80jYLT3U1jfsWawN4WrhMPlqDER0VlMSQedFXckD26Q:Aw80cTsjkWawNHFIml1ar
type: PE32 executable (GUI) Intel 80386, for MS Windows

Version Info:

FileVersion: 1
ProductVersion: 1
Translation: 0x0809 0x04b0

Ransom:Win32/Stampado.A also known as:

GridinSoft Trojan.Ransom.Gen
Bkav W32.AIDetect.malware1
MicroWorld-eScan Trojan.GenericKD.43736330
FireEye Trojan.GenericKD.43736330
ALYac Trojan.GenericKD.43736330
Cylance Unsafe
VIPRE Trojan.Win32.Generic!BT
AegisLab Trojan.Win32.Generic.4!e
Sangfor Trojan.Win32.Save.a
CrowdStrike win/malicious_confidence_70% (D)
BitDefender Trojan.GenericKD.43736330
K7GW Trojan ( 00506d7e1 )
K7AntiVirus Trojan ( 00506d7e1 )
Symantec SecurityRisk.gen1
ESET-NOD32 a variant of Win32/TrojanDropper.Autoit.MY
Avast AutoIt:Injector-IV [Trj]
Kaspersky Trojan-Ransom.Win32.Blocker.jzcv
Alibaba Trojan:Win32/Starter.ali1001008
NANO-Antivirus Trojan.Win32.Blocker.enpdvv
APEX Malicious
Ad-Aware Trojan.GenericKD.43736330
Emsisoft Trojan.GenericKD.43736330 (B)
Comodo Malware@#xhu67ffshv0q
F-Secure Heuristic.HEUR/AGEN.1100006
McAfee-GW-Edition BehavesLike.Win32.TrojanAitInject.tc
Sophos Mal/Generic-S
Ikarus Trojan-Dropper.Win32.Autoit
GData Trojan.GenericKD.43736330
Avira HEUR/AGEN.1100006
Arcabit Trojan.Generic.D29B5D0A
ZoneAlarm Trojan-Ransom.Win32.Blocker.jzcv
Microsoft Ransom:Win32/Stampado.A
Cynet Malicious (score: 85)
McAfee Artemis!2D4648E590CC
MAX malware (ai score=86)
Malwarebytes Malware.AI.2535290412
Tencent Win32.Trojan.Blocker.Hsiw
Fortinet W32/Autoit.MY!tr
AVG AutoIt:Injector-IV [Trj]
Paloalto generic.ml
Qihoo-360 Win32/Ransom.Blocker.HgIASOcA

How to remove Ransom:Win32/Stampado.A 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 Ransom:Win32/Stampado.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:

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If the guide doesn’t help you to remove Ransom:Win32/Stampado.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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