Trojan.MSIL.Cossta

What is Trojan.MSIL.Cossta infection?

In this post you will discover about the definition of Trojan.MSIL.Cossta as well as its unfavorable influence on your computer. Such ransomware are a form of malware that is specified by on-line frauds to demand paying the ransom money by a victim.

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In the majority of the instances, Trojan.MSIL.Cossta virus will advise its targets to start funds transfer for the objective of reducing the effects of the changes that the Trojan infection has introduced to the victim’s gadget.

Trojan.MSIL.Cossta Summary

These modifications can be as adheres to:

• 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.
• The binary likely contains encrypted or compressed data. In this case, encryption is a way of hiding virus’ code from antiviruses and virus’ analysts.
• Sniffs keystrokes;
• 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
• Ciphering the records located on the target’s hard disk drive — so the victim can no more make use of the information;
• Preventing normal accessibility to the victim’s workstation;

Trojan.MSIL.Cossta

The most typical channels whereby Trojan.MSIL.Cossta Trojans are infused are:

• By ways of phishing e-mails;
• As a repercussion of user ending up on a resource that hosts a destructive software;

As quickly as the Trojan is effectively injected, it will certainly either cipher the information on the victim’s computer or protect against the tool from working in a correct manner – while additionally positioning a ransom money note that mentions the demand for the targets to effect the repayment for the function of decrypting the papers or recovering the file system back to the preliminary problem. In many instances, the ransom money note will turn up when the client reboots the COMPUTER after the system has actually currently been damaged.

Trojan.MSIL.Cossta circulation channels.

In numerous edges of the world, Trojan.MSIL.Cossta grows by jumps as well as bounds. Nonetheless, the ransom money notes and also tricks of obtaining the ransom amount might differ relying on specific neighborhood (regional) settings. The ransom money notes and methods of obtaining the ransom amount might differ depending on certain neighborhood (local) settings.

For instance:

Faulty alerts concerning unlicensed software application.

In certain locations, the Trojans typically wrongfully report having identified some unlicensed applications made it possible for on the target’s gadget. The sharp after that demands the individual to pay the ransom.

Faulty statements concerning illegal web content.

In countries where software program piracy is less preferred, this approach is not as reliable for the cyber fraudulences. Alternatively, the Trojan.MSIL.Cossta popup alert may falsely claim to be deriving from a law enforcement organization and will certainly report having situated kid porn or various other unlawful data on the tool.

Trojan.MSIL.Cossta popup alert might wrongly declare to be acquiring from a regulation enforcement institution as well as will certainly report having located youngster porn or various other unlawful information on the device. The alert will in a similar way contain a requirement for the user to pay the ransom money.

Technical details

File Info:
crc32: D497919B
md5: 5971ade04f8a944aa3d130c572dcce72
name: 5971ADE04F8A944AA3D130C572DCCE72.mlw
sha1: fd11dede8cd73cdfe6eb6912da2bc16b3604597b
sha256: 7d31b95783069bcb224ae5ac561936bfc3aebec13c6562aef70a20dd9533aeb7
sha512: 6b4453a49001179aeb3cfe2040dddc6700d4593941758f5058fda82f8a0d0fd47ef0f8cb54b4239774fa0e131f6d101a8e6b45ffdf4678cc0e05c5d81a535680
ssdeep: 3072:zJc3oSudjVllllllllllllllllllllllllllllllllllllllllllUMlLlypI0Oh:zqpMvdlypIrhU3W8JZhQHDljfQDr
type: PE32 executable (GUI) Intel 80386 Mono/.Net assembly, for MS Windows

Version Info:
Translation: 0x0000 0x04b0
LegalCopyright: Copyright xa9  2009 CIGAM Corporativa
Assembly Version: 2.1.3.30
InternalName: CGCopyPaste.exe
FileVersion: 2.1.3.30
CompanyName: CIGAM Corporativa
Comments: CIGAM Copy & Paste
ProductName: CIGAM Copy & Paste
ProductVersion: 2.1.3.30
FileDescription: CIGAM Copy & Paste
OriginalFilename: CGCopyPaste.exe

Trojan.MSIL.Cossta also known as:

How to remove Trojan.MSIL.Cossta virus?

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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Download GridinSoft Anti-Malware.

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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.MSIL.Cossta 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.MSIL.Cossta you can always ask me in the comments for getting help.

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