Backdoor:Win32/Mosucker.AA

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

What is Backdoor:Win32/Mosucker.AA infection?

In this post you will certainly locate about the interpretation of Backdoor:Win32/Mosucker.AA and also its adverse effect on your computer system. Such ransomware are a form of malware that is elaborated by on-line fraudulences to require paying the ransom by a target.

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Most of the cases, Backdoor:Win32/Mosucker.AA virus will instruct its targets to initiate funds move for the objective of neutralizing the changes that the Trojan infection has actually presented to the sufferer’s tool.

Backdoor:Win32/Mosucker.AA Summary

These adjustments can be as complies with:

  • Injection (inter-process);
  • Injection (Process Hollowing);
  • 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.
  • 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.

  • 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.
  • Executed a process and injected code into it, probably while unpacking;
  • 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
  • Anomalous binary characteristics. This is a way of hiding virus’ code from antiviruses and virus’ analysts.
  • Ciphering the papers situated on the target’s disk drive — so the sufferer can no longer use the data;
  • 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.

Backdoor:Win32/Mosucker.AA

The most common networks whereby Backdoor:Win32/Mosucker.AA 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 an effect of user winding up on a source that organizes a malicious software application;

As soon as the Trojan is effectively injected, it will certainly either cipher the data on the target’s computer or avoid the gadget from functioning in a proper fashion – while additionally putting a ransom money note that mentions the requirement for the sufferers to impact the repayment for the objective of decrypting the files or restoring the data system back to the first problem. In most instances, the ransom note will certainly turn up when the client restarts the COMPUTER after the system has currently been harmed.

Backdoor:Win32/Mosucker.AA circulation networks.

In numerous edges of the world, Backdoor:Win32/Mosucker.AA grows by jumps as well as bounds. However, the ransom notes and also methods of extorting the ransom money amount might differ relying on specific local (local) settings. The ransom money notes as well as methods of obtaining the ransom money quantity might vary depending on certain neighborhood (regional) settings.

Ransomware injection

As an example:

    Faulty notifies regarding unlicensed software.

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

    Faulty declarations about prohibited content.

    In nations where software program piracy is less popular, this technique is not as effective for the cyber frauds. Additionally, the Backdoor:Win32/Mosucker.AA popup alert might wrongly claim to be deriving from a police institution as well as will certainly report having located kid pornography or various other unlawful information on the device.

    Backdoor:Win32/Mosucker.AA popup alert may incorrectly assert to be deriving from a law enforcement institution as well as will report having located child porn or various other prohibited information on the tool. The alert will likewise consist of a requirement for the individual to pay the ransom money.

Technical details

File Info:

crc32: DD10820A
md5: e9d5c2934c120748d503f05d89c04107
name: E9D5C2934C120748D503F05D89C04107.mlw
sha1: 9e14a321a762d77f6c820830e1a026e8041754a7
sha256: 8e45750b7df8a49c431753febb59855ea9a38cb4e1783b67974457f7b6250be8
sha512: 8759c5431cbb2191bb0669eea9ec152599624a925c6c0905b2e653c09dc0a9d4b8f7e49ac59f50b1c0bc809af5a6377ab40f14023c676691ba52a31e75218a90
ssdeep: 3072:QH6qlrJsbfAfCOTXspolrcY9fI6HvLGmCWXsRmJUbfW5FhJcR:8tJHN3B9dvhHcRmJUqDh2R
type: PE32 executable (GUI) Intel 80386, for MS Windows

Version Info:

0: [No Data]

Backdoor:Win32/Mosucker.AA also known as:

GridinSoftTrojan.Ransom.Gen
Elasticmalicious (high confidence)
DrWebTrojan.Proxy.4898
CynetMalicious (score: 100)
ALYacTrojan.Crypt.Delf.AL
CylanceUnsafe
ZillyaTrojan.Buzus.Win32.36396
SangforTrojan.Win32.Crypt.AL
Cybereasonmalicious.34c120
CyrenW32/Trojan.OIJC-4393
SymantecML.Attribute.HighConfidence
ESET-NOD32Win32/MoSucker.AA
APEXMalicious
AvastWin32:Dh-A [Heur]
KasperskyTrojan.Win32.Buzus.czyc
BitDefenderTrojan.Crypt.Delf.AL
NANO-AntivirusTrojan.Win32.Buzus.dzdjan
ViRobotTrojan.Win32.Ranky.53760.B
MicroWorld-eScanTrojan.Crypt.Delf.AL
TencentWin32.Trojan.Buzus.Anpl
Ad-AwareTrojan.Crypt.Delf.AL
SophosMal/Generic-S
ComodoTrojWare.Win32.Medbot.dc@4rleim
BitDefenderThetaAI:Packer.9D4061CA1F
VIPRETrojan.Win32.Generic!BT
McAfee-GW-EditionBehavesLike.Win32.Ransomware.cc
FireEyeGeneric.mg.e9d5c2934c120748
EmsisoftTrojan.Crypt.Delf.AL (B)
JiangminTrojan/Horst.c
WebrootW32.Backdoor.Gen
AviraTR/Dropper.Gen
KingsoftWin32.Troj.Buzus.cz.(kcloud)
MicrosoftBackdoor:Win32/Mosucker.AA
ArcabitTrojan.Crypt.Delf.AL
AegisLabTrojan.Win32.Buzus.4!c
GDataTrojan.Crypt.Delf.AL
AhnLab-V3Trojan/Win32.Buzus.C2758694
McAfeeArtemis!E9D5C2934C12
MAXmalware (ai score=83)
VBA32Trojan.Win32.Buzus.ay
MalwarebytesTrojan.Dropper
PandaGeneric Malware
RisingBackdoor.Mosucker!8.970 (CLOUD)
IkarusPUA.NoobyProtect
MaxSecureTrojan.Malware.300983.susgen
FortinetW32/Buzus.CETH!tr
AVGWin32:Dh-A [Heur]
Paloaltogeneric.ml
Qihoo-360Win32/Backdoor.Minimo.HwcBEpsA

How to remove Backdoor:Win32/Mosucker.AA 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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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 Backdoor:Win32/Mosucker.AA 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 Backdoor:Win32/Mosucker.AA 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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