Trojan:Win32/Vundo.SA

What is Trojan:Win32/Vundo.SA infection?

In this post you will certainly locate about the interpretation of Trojan:Win32/Vundo.SA and also its negative impact on your computer system. Such ransomware are a type of malware that is specified by on the internet frauds to require paying the ransom money by a sufferer.

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In the majority of the situations, Trojan:Win32/Vundo.SA ransomware will advise its sufferers to launch funds move for the objective of reducing the effects of the modifications that the Trojan infection has introduced to the victim’s device.

Trojan:Win32/Vundo.SA 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.
• 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.
• 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.
• HTTP traffic contains suspicious features which may be indicative of malware related traffic;
• Performs some HTTP requests;
• Uses Windows utilities for basic functionality;
• Detects Sandboxie through the presence of a library;
• Detects SunBelt Sandbox through the presence of a library;
• Enumerates services, possibly for anti-virtualization;
• Detects the presence of Wine emulator via function name;
• Deletes its original binary from disk;
• Creates or sets a registry key to a long series of bytes, possibly to store a binary or malware config;
• 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.
• Checks the version of Bios, possibly for anti-virtualization;
• Attempts to modify proxy settings. This trick used for inject malware into connection between browser and server;
• The sample wrote data to the system hosts file.;
• 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 found on the target’s hard disk — so the victim can no longer make use of the data;
• Preventing routine accessibility to the victim’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

Trojan:Win32/Vundo.SA

The most common networks through which Trojan:Win32/Vundo.SA Trojans are injected are:

• By methods of phishing emails;
• As a consequence of user ending up on a resource that hosts a destructive software program;

As quickly as the Trojan is successfully infused, it will either cipher the information on the victim’s computer or prevent the device from operating in a correct way – while likewise putting a ransom money note that states the demand for the targets to impact the payment for the purpose of decrypting the papers or restoring the documents system back to the initial problem. In most instances, the ransom note will certainly come up when the client restarts the COMPUTER after the system has actually currently been damaged.

Trojan:Win32/Vundo.SA distribution networks.

In various corners of the world, Trojan:Win32/Vundo.SA expands by jumps as well as bounds. Nevertheless, the ransom money notes and tricks of extorting the ransom amount might differ depending upon specific regional (local) setups. The ransom money notes and also techniques of obtaining the ransom money amount may differ depending on certain neighborhood (local) settings.

For example:

Faulty signals regarding unlicensed software application.

In certain areas, the Trojans usually wrongfully report having actually discovered some unlicensed applications enabled on the sufferer’s tool. The sharp after that requires the individual to pay the ransom.

Faulty statements concerning prohibited content.

In nations where software application piracy is less popular, this method is not as effective for the cyber frauds. Alternatively, the Trojan:Win32/Vundo.SA popup alert may incorrectly declare to be originating from a police establishment and also will report having located child porn or various other unlawful information on the tool.

Trojan:Win32/Vundo.SA popup alert might falsely assert to be acquiring from a regulation enforcement organization and also will certainly report having located child pornography or other unlawful information on the tool. The alert will similarly have a need for the customer to pay the ransom.

Technical details

File Info:
crc32: 68D418C0
md5: bc197dd5a6423484f2a6ecec87ab74bf
name: BC197DD5A6423484F2A6ECEC87AB74BF.mlw
sha1: 5a88499f2d23fa18ffbb0b9d195e06f4d4a707f7
sha256: 4f954379864c3b574209d9b3405434abb39a8cfcb8a0fd1e3956d109b9043074
sha512: 9250861557ee6cbed0b8e2cdae9f96f29f36f83eab83c502ae70ce1647e89879653adad70a6f2c917e1224d702824cda3c45c7bb6dcb44b0cf6677a0aabd3ddc
ssdeep: 6144:UT4txqqDLupWRTGPuNR2c0aBF+PveIH3dyqMtyFbZw4ETcca4R7Ia2520gXlPyWX:9MqnuMCWlLbQWG3it2dw4ETdoRlK9yWX
type: PE32 executable (GUI) Intel 80386, for MS Windows

Version Info:
LegalCopyright: xa9 Qgudjjzdp Qaulieuhycq. All rights reserved.
InternalName: ASFErr.Dll
FileVersion: 9.00.00.3250 (xpsp_sp2_rtm.040803-2158)
CompanyName: Lzodwwhgw Ulfwephmuou
ProductName: Lmizaiiwhxae Oaydvfv Media Services
ProductVersion: 9.00.00.3250
FileDescription: ASF Error Definitions
OriginalFilename: ASFErr.Dll
Translation: 0x0409 0x04b0

Trojan:Win32/Vundo.SA also known as:

How to remove Trojan:Win32/Vundo.SA 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.

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.

Press “Install” button.

Once installed, Anti-Malware will automatically run.

Wait for the Anti-Malware scan to complete.

GridinSoft Anti-Malware will automatically start scanning your system for Trojan:Win32/Vundo.SA 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.

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.

Are Your Protected?

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If the guide doesn’t help you to remove Trojan:Win32/Vundo.SA you can always ask me in the comments for getting help.

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