Trojan:Win32/Small.BH

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

What is Trojan:Win32/Small.BH infection?

In this post you will certainly locate regarding the meaning of Trojan:Win32/Small.BH as well as its unfavorable effect on your computer. Such ransomware are a type of malware that is elaborated by online fraudulences to demand paying the ransom by a victim.

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In the majority of the instances, Trojan:Win32/Small.BH ransomware will certainly instruct its targets to launch funds transfer for the purpose of neutralizing the modifications that the Trojan infection has introduced to the victim’s tool.

Trojan:Win32/Small.BH Summary

These adjustments can be as adheres to:

  • Possible date expiration check, exits too soon after checking local time;
  • 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.
  • Performs some HTTP requests;
  • A system process is generating network traffic likely as a result of process injection;
  • 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 modify proxy settings. This trick used for inject malware into connection between browser and server;
  • Creates a copy of itself;
  • Creates a slightly modified copy of itself;
  • Anomalous binary characteristics. This is a way of hiding virus’ code from antiviruses and virus’ analysts.
  • Ciphering the documents situated on the sufferer’s hard drive — so the victim can no more use the information;
  • Preventing normal access 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.

Trojan:Win32/Small.BH

The most regular networks through which Trojan:Win32/Small.BH Ransomware Trojans are infused are:

  • By methods of phishing emails;
  • As a repercussion of user ending up on a resource that holds a destructive software application;

As quickly as the Trojan is successfully infused, it will certainly either cipher the information on the target’s PC or prevent the device from operating in a correct way – while additionally placing a ransom money note that points out the demand for the sufferers to impact the payment for the purpose of decrypting the papers or recovering the file system back to the initial problem. In a lot of circumstances, the ransom money note will certainly come up when the customer restarts the PC after the system has already been damaged.

Trojan:Win32/Small.BH distribution channels.

In numerous corners of the globe, Trojan:Win32/Small.BH grows by leaps and also bounds. Nevertheless, the ransom money notes and methods of obtaining the ransom money quantity might differ relying on certain local (local) setups. The ransom notes and methods of obtaining the ransom amount may differ depending on particular neighborhood (local) settings.

Ransomware injection

For instance:

    Faulty notifies regarding unlicensed software.

    In particular areas, the Trojans often wrongfully report having identified some unlicensed applications enabled on the target’s gadget. The sharp after that requires the individual to pay the ransom money.

    Faulty declarations regarding unlawful web content.

    In countries where software program piracy is less popular, this method is not as effective for the cyber frauds. Additionally, the Trojan:Win32/Small.BH popup alert might wrongly assert to be deriving from a law enforcement establishment and will report having located youngster pornography or other unlawful data on the device.

    Trojan:Win32/Small.BH popup alert might incorrectly assert to be obtaining from a regulation enforcement institution and also will certainly report having located child porn or other illegal information on the gadget. The alert will in a similar way contain a need for the customer to pay the ransom.

Technical details

File Info:

crc32: 2601B5C9
md5: 4d5e3b222989150dee024b670bb50cf9
name: 4D5E3B222989150DEE024B670BB50CF9.mlw
sha1: d199151efdfdeb25602d992745f6e2eb80b5693c
sha256: 4df7c3da9cd76e5b858737736c5fdbfb0783aab03dfe0440da0b7dee4ae440cc
sha512: 7214aafc75bdd4b69fe8047fa7f28a36ddeb82d77d2efbc8e1180636d09140eebb33c646374f52d11ca268a2ae3d7b18d18fa91b2b6b3abbfedfd5804a15b604
ssdeep: 6144:twiALdUc77GKjg7TVCsEVjnQbe1OblZqYO7fpEC1FA6QYMH:eiAGwsCsEV7Qbe1olZdH
type: PE32 executable (GUI) Intel 80386, for MS Windows

Version Info:

LegalCopyright: xffa9 Microsoft Corporation. All rights reserved.
InternalName: MQTGSVC.EXE
FileVersion: 6.1.7600.16385
CompanyName: Microsoft Corporation
PrivateBuild: MQTGSVC.EXE
LegalTrademarks: xffa9 Microsoft Corporation. All rights reserved.
Comments:
ProductName: Microsoftxffae Windowsxffae Operating System
SpecialBuild: 6.1.7600.16385
ProductVersion: 6.1.7600.16385
FileDescription: Message Queuing Trigger Service
OriginalFilename: MQTGSVC.EXE
Translation: 0x0409 0x04b0

Trojan:Win32/Small.BH also known as:

GridinSoft Trojan.Ransom.Gen
Bkav W32.AIDetect.malware1
Elastic malicious (high confidence)
MicroWorld-eScan Gen:Trojan.Malware.xu0@aOyFo8pi
FireEye Generic.mg.4d5e3b222989150d
CAT-QuickHeal Trojan.Small.gen
McAfee Downloader-FKE!4D5E3B222989
Cylance Unsafe
VIPRE Trojan.Win32.Small.bhm (v)
Sangfor Trojan.Win32.Save.a
K7AntiVirus Trojan ( 005325301 )
BitDefender Gen:Trojan.Malware.xu0@aOyFo8pi
K7GW Trojan ( 005325301 )
Cybereason malicious.229891
Cyren W32/SmallDl.F.gen!Eldorado
Symantec ML.Attribute.HighConfidence
APEX Malicious
Avast Win32:Malware-gen
ClamAV Win.Virus.Blocker-821
Kaspersky Trojan-Ransom.Win32.Blocker.amii
NANO-Antivirus Trojan.Win32.Blocker.crqdwo
AegisLab Trojan.Win32.Blocker.j!c
Ad-Aware Gen:Trojan.Malware.xu0@aOyFo8pi
Emsisoft Gen:Trojan.Malware.xu0@aOyFo8pi (B)
Comodo TrojWare.Win32.Agent.AWR@4ri3wg
F-Secure Trojan.TR/Small.bhoumd
DrWeb Trojan.DownLoader8.1578
Zillya Trojan.Blocker.Win32.5727
TrendMicro TROJ_RODECAP.SMO
McAfee-GW-Edition BehavesLike.Win32.Generic.fh
Sophos Mal/Generic-S + Mal/Qbot-P
Ikarus Trojan.Win32.Small
Jiangmin Trojan.Blocker.sst
Avira TR/Small.bhoumd
MAX malware (ai score=100)
Antiy-AVL Trojan[Ransom]/Win32.Blocker
Kingsoft Win32.Troj.Undef.(kcloud)
Microsoft Trojan:Win32/Small.BH
Arcabit Trojan.Malware.EDDCC8
ZoneAlarm Trojan-Ransom.Win32.Blocker.amii
GData Gen:Trojan.Malware.xu0@aOyFo8pi
Cynet Malicious (score: 100)
AhnLab-V3 Trojan/Win32.Blocker.R52075
Acronis suspicious
BitDefenderTheta Gen:NN.ZexaF.34590.xu0@aOyFo8pi
ALYac Gen:Trojan.Malware.xu0@aOyFo8pi
TACHYON Trojan/W32.Blocker.381952
VBA32 BScope.Trojan.Downloader
Malwarebytes Malware.AI.408324201
Panda Trj/Genetic.gen
ESET-NOD32 a variant of Win32/Rodecap.BB
TrendMicro-HouseCall TROJ_RODECAP.SMO
Rising Ransom.Blocker!8.12A (CLOUD)
Yandex Trojan.GenAsa!6KhuQuHc76g
SentinelOne Static AI – Suspicious PE
Fortinet W32/Rodecap.BBC!tr
Webroot W32.Small
AVG Win32:Malware-gen
Paloalto generic.ml
CrowdStrike win/malicious_confidence_100% (D)
Qihoo-360 HEUR/Malware.QVM10.Gen

How to remove Trojan:Win32/Small.BH 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/Small.BH 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/Small.BH 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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