Trojan.Win32.Bsymem

Written by Robert Bailey

What is Trojan.Win32.Bsymem infection?

In this post you will certainly locate regarding the interpretation of Trojan.Win32.Bsymem as well as its adverse influence on your computer system. Such ransomware are a type of malware that is clarified by on the internet fraudulences to demand paying the ransom money by a target.

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Most of the cases, Trojan.Win32.Bsymem ransomware will instruct its victims to start funds transfer for the purpose of reducing the effects of the modifications that the Trojan infection has actually presented to the target’s device.

Trojan.Win32.Bsymem 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.
  • A process attempted to delay the analysis task.;
  • Attempts to connect to a dead IP:Port (7 unique times);
  • At least one IP Address, Domain, or File Name was found in a crypto call;
  • 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;
  • Unconventionial language used in binary resources: Malay (Brunei Darussalam);
  • 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;
  • Checks for the presence of known windows from debuggers and forensic tools;
  • Attempts to repeatedly call a single API many times in order to delay analysis time. This significantly complicates the work of the virus analyzer. Typical malware tactics!
  • Steals private information from local Internet browsers;
  • 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.
  • Attempts to identify installed AV products by installation directory;
  • Checks the CPU name from registry, possibly for anti-virtualization;
  • Detects VirtualBox through the presence of a registry key;
  • Attempts to modify proxy settings. This trick used for inject malware into connection between browser and server;
  • Attempts to create or modify system certificates;
  • 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.
  • Uses suspicious command line tools or Windows utilities;
  • Ciphering the papers found on the sufferer’s hard disk — so the sufferer can no longer make use of the information;
  • Preventing routine 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.
Similar behavior
Related domains
g-clean.in Win32:RansomX-gen [Ransom]
douqki03.top Win32:RansomX-gen [Ransom]
telete.in Win32:RansomX-gen [Ransom]
nailedpizza.top Win32:RansomX-gen [Ransom]
apps.identrust.com Win32:RansomX-gen [Ransom]
iplogger.org Win32:RansomX-gen [Ransom]

Trojan.Win32.Bsymem

The most common channels whereby Trojan.Win32.Bsymem Trojans are infused are:

  • By methods of phishing emails;
  • As an effect of user ending up on a source that holds a destructive software application;

As soon as the Trojan is efficiently injected, it will certainly either cipher the information on the victim’s computer or avoid the tool from working in an appropriate manner – while also putting a ransom note that states the demand for the targets to impact the settlement for the objective of decrypting the files or bring back the file system back to the preliminary condition. In most instances, the ransom money note will come up when the client restarts the PC after the system has actually currently been damaged.

Trojan.Win32.Bsymem circulation channels.

In different corners of the globe, Trojan.Win32.Bsymem grows by jumps as well as bounds. Nevertheless, the ransom notes and also techniques of extorting the ransom amount might differ depending on specific local (local) settings. The ransom money notes as well as techniques of obtaining the ransom money amount may vary depending on particular regional (regional) setups.

Ransomware injection

For instance:

    Faulty signals concerning unlicensed software application.

    In specific locations, the Trojans typically wrongfully report having discovered some unlicensed applications enabled on the sufferer’s tool. The sharp then demands the customer to pay the ransom.

    Faulty declarations concerning unlawful content.

    In countries where software piracy is less preferred, this approach is not as effective for the cyber scams. Alternatively, the Trojan.Win32.Bsymem popup alert might incorrectly declare to be originating from a police organization and will report having situated youngster pornography or other prohibited data on the device.

    Trojan.Win32.Bsymem popup alert might incorrectly assert to be deriving from a law enforcement establishment as well as will report having situated child porn or other illegal data on the device. The alert will in a similar way include a demand for the user to pay the ransom.

Technical details

File Info:

crc32: F5BCD458
md5: ad8c445fd05b715107137e34425996e0
name: AD8C445FD05B715107137E34425996E0.mlw
sha1: 1bcf9173514ab4ea13a1ab3e2ad558291c6ded2b
sha256: a8f63b9abc174795949ff3cc2498f52627278825ff7b74a3044b83bd82253a1b
sha512: 29d2be82b8c7c8b5b999ed105345a61f3faa2a581f149d660c3c302b65cde33628e5ff89b936bfbed337086bebc0d3bae723de61508861694ebc8b2aaae1b395
ssdeep: 6144:G41sWl8h2ORgVhCpcuXohXgE0xyuS7f5LpivZQLIb8VR6OObvfuBs:vsWl024AhC+HaEAyuSr5sZQLIb8VRE
type: PE32 executable (GUI) Intel 80386, for MS Windows

Version Info:

ProductVersus: 1.9.37.29
FileVersion: 1.0.52.18
Translations: 0x0386 0x010e

Trojan.Win32.Bsymem also known as:

GridinSoft Trojan.Ransom.Gen
Bkav W32.AIDetect.malware1
Elastic malicious (high confidence)
DrWeb Trojan.Encoder.33902
Cynet Malicious (score: 100)
ALYac Trojan.GenericKDZ.74981
Cylance Unsafe
Sangfor Trojan.Win32.Save.a
CrowdStrike win/malicious_confidence_100% (D)
Cybereason malicious.3514ab
Cyren W32/Kryptik.EAC.gen!Eldorado
Symantec ML.Attribute.HighConfidence
ESET-NOD32 a variant of Win32/Kryptik.HKTQ
APEX Malicious
Avast Win32:RansomX-gen [Ransom]
ClamAV Win.Malware.Filerepmalware-9859376-0
Kaspersky HEUR:Trojan.Win32.Bsymem.gen
BitDefender Trojan.GenericKDZ.74981
MicroWorld-eScan Trojan.GenericKDZ.74981
Ad-Aware Trojan.GenericKDZ.74981
Sophos ML/PE-A
BitDefenderTheta Gen:NN.ZexaF.34688.vu0@aWDSlabO
McAfee-GW-Edition BehavesLike.Win32.Lockbit.fh
FireEye Generic.mg.ad8c445fd05b7151
Emsisoft Trojan.Agent (A)
SentinelOne Static AI – Malicious PE
Microsoft Trojan:Win32/Glupteba.VAM!MTB
Arcabit Trojan.Generic.D124E5
ZoneAlarm HEUR:Trojan.Win32.Bsymem.gen
GData Win32.Trojan-Spy.BeamLoader.Q9GE1J
AhnLab-V3 Trojan/Win.MalPE.R419420
McAfee Artemis!AD8C445FD05B
MAX malware (ai score=83)
VBA32 BScope.Backdoor.Convagent
Malwarebytes Trojan.MalPack.GS
Rising Trojan.Kryptik!8.8 (TFE:dGZlOgVOZpKBUh3WDw)
Ikarus Trojan.Win32.Azorult
Fortinet W32/Kryptik.HKSS!tr
AVG Win32:RansomX-gen [Ransom]

How to remove Trojan.Win32.Bsymem 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

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 Trojan.Win32.Bsymem 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:

Full version of GridinSoft

Full version of GridinSoft Anti-Malware

If the guide doesn’t help you to remove Trojan.Win32.Bsymem 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/products/

About the author

Robert Bailey

Security Engineer. Interested in malware, reverse engineering, white ethical hacking. I like coding, travelling and bikes.

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