Trojan.Win32.Bsymem.uau

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

What is Trojan.Win32.Bsymem.uau infection?

In this article you will find concerning the interpretation of Trojan.Win32.Bsymem.uau as well as its negative impact on your computer. Such ransomware are a kind of malware that is specified by on the internet frauds to require paying the ransom by a target.

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Most of the instances, Trojan.Win32.Bsymem.uau virus will certainly advise its sufferers to start funds move for the objective of reducing the effects of the modifications that the Trojan infection has actually presented to the sufferer’s tool.

Trojan.Win32.Bsymem.uau Summary

These adjustments 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.
  • 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 created a hidden window;
  • Uses Windows utilities for basic functionality;
  • 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 records found on the target’s hard drive — so the victim can no more utilize the data;
  • Preventing normal access 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.
Similar behavior
Related domains
z.whorecord.xyzRansom.Win32.Wacatac.oa!s1
a.tomx.xyzRansom.Win32.Wacatac.oa!s1

Trojan.Win32.Bsymem.uau

The most regular channels whereby Trojan.Win32.Bsymem.uau Ransomware Trojans are injected are:

  • By ways of phishing emails;
  • As an effect of individual ending up on a resource that holds a destructive software;

As soon as the Trojan is efficiently infused, it will either cipher the information on the target’s computer or prevent the tool from operating in a correct way – while likewise putting a ransom money note that mentions the need for the sufferers to effect the settlement for the purpose of decrypting the records or bring back the file system back to the preliminary condition. In many circumstances, the ransom money note will certainly turn up when the customer restarts the PC after the system has actually already been damaged.

Trojan.Win32.Bsymem.uau distribution networks.

In different corners of the globe, Trojan.Win32.Bsymem.uau expands by leaps as well as bounds. Nonetheless, the ransom money notes as well as techniques of obtaining the ransom amount may differ depending on certain regional (local) setups. The ransom notes and techniques of extorting the ransom amount may vary depending on particular neighborhood (local) settings.

Ransomware injection

As an example:

    Faulty alerts about unlicensed software.

    In specific areas, the Trojans typically wrongfully report having discovered some unlicensed applications made it possible for on the victim’s tool. The alert after that requires the user to pay the ransom.

    Faulty declarations about unlawful material.

    In countries where software application piracy is less preferred, this approach is not as effective for the cyber frauds. Alternatively, the Trojan.Win32.Bsymem.uau popup alert might falsely claim to be stemming from a law enforcement institution as well as will report having located child porn or various other illegal information on the gadget.

    Trojan.Win32.Bsymem.uau popup alert may falsely assert to be obtaining from a legislation enforcement organization as well as will certainly report having situated child porn or other unlawful information on the gadget. The alert will in a similar way contain a need for the user to pay the ransom.

Technical details

File Info:

crc32: D5914237
md5: 5790f7df9e01e03bafef3d58cd37a183
name: 5790F7DF9E01E03BAFEF3D58CD37A183.mlw
sha1: 7e83b3fa2fba123e3755dcdc72690ee11a2b835f
sha256: c3ee8a10bbc4de1eb85f47553e2e3abb6490f9a66957906448f29d63b07482a4
sha512: 1a3ff41ca6c13c6d1337d2eee961424da800c25253059cb07427e16426a5148492773ede5f153e3eb7adf7688d844279dad09df0e08ff2c81f3998c06fc3cd0f
ssdeep: 6144:zbaGP0jXT0Mpsq7oSdLmB9yLTUQvH3nKiXtozvYpewr:yic7BqgLw+XazvI
type: PE32 executable (DLL) (GUI) Intel 80386, for MS Windows

Version Info:

0: [No Data]

Trojan.Win32.Bsymem.uau also known as:

GridinSoftTrojan.Ransom.Gen
Elasticmalicious (high confidence)
DrWebTrojan.Inject4.6079
MicroWorld-eScanTrojan.GenericKD.44783122
FireEyeGeneric.mg.5790f7df9e01e03b
Qihoo-360HEUR/QVM39.1.AC27.Malware.Gen
McAfeeW32/PinkSbot-HE!5790F7DF9E01
CylanceUnsafe
SangforMalware
BitDefenderTrojan.GenericKD.44783122
K7GWBackdoor ( 00573a2f1 )
CrowdStrikewin/malicious_confidence_100% (D)
BitDefenderThetaGen:NN.ZedlaF.34670.Ei4@aSA4d!k
CyrenW32/Qbot.AV.gen!Eldorado
AvastWin32:Qakbot-DP [Trj]
KasperskyTrojan.Win32.Bsymem.uau
NANO-AntivirusVirus.Win32.Gen-Crypt.ccnc
RisingTrojan.Generic@ML.96 (RDMK:aIYCW+hOtyBWgo8OI7kDdw)
Ad-AwareTrojan.GenericKD.44783122
EmsisoftTrojan.GenericKD.44783122 (B)
F-SecureTrojan.TR/AD.Qbot.jqrrn
McAfee-GW-EditionW32/PinkSbot-HE!5790F7DF9E01
SentinelOneStatic AI – Malicious PE
SophosML/PE-A + Mal/EncPk-APW
AviraTR/AD.Qbot.jqrrn
MicrosoftTrojan:Win32/Qakbot.AVP!MSR
GridinsoftRansom.Win32.Wacatac.oa!s1
ArcabitTrojan.Generic.D2AB5612
ZoneAlarmTrojan.Win32.Bsymem.uau
GDataTrojan.GenericKD.44783122
CynetMalicious (score: 100)
AhnLab-V3Trojan/Win32.Qakbot.R357003
VBA32Backdoor.Qbot
ALYacTrojan.GenericKD.44783122
MAXmalware (ai score=80)
APEXMalicious
ESET-NOD32Win32/Qbot.CU
FortinetW32/Qbot.CU!tr
AVGWin32:Qakbot-DP [Trj]
Paloaltogeneric.ml

How to remove Trojan.Win32.Bsymem.uau 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 Trojan.Win32.Bsymem.uau 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 Trojan.Win32.Bsymem.uau 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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