TrojanDropper:Win32/Microjoin.C

Written by Robert Bailey

What is TrojanDropper:Win32/Microjoin.C infection?

In this article you will discover regarding the interpretation of TrojanDropper:Win32/Microjoin.C and its negative effect on your computer. Such ransomware are a form of malware that is elaborated by on the internet scams to demand paying the ransom by a target.

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Most of the cases, TrojanDropper:Win32/Microjoin.C virus will certainly instruct its sufferers to start funds move for the function of counteracting the modifications that the Trojan infection has introduced to the target’s device.

TrojanDropper:Win32/Microjoin.C Summary

These modifications can be as follows:

  • Executable code extraction;
  • Reads data out of its own binary image;
  • Drops a binary and executes it;
  • The binary likely contains encrypted or compressed data.;
  • Attempts to repeatedly call a single API many times in order to delay analysis time;
  • Installs itself for autorun at Windows startup;
  • Network activity detected but not expressed in API logs;
  • Anomalous binary characteristics;
  • Ciphering the files located on the target’s hard disk — so the target can no longer make use of the information;
  • Preventing regular accessibility to the sufferer’s workstation;

TrojanDropper:Win32/Microjoin.C

The most common channels whereby TrojanDropper:Win32/Microjoin.C are injected are:

  • By methods of phishing emails;
  • As an effect of individual ending up on a source that holds a harmful software program;

As quickly as the Trojan is efficiently injected, it will either cipher the data on the sufferer’s computer or stop the gadget from functioning in an appropriate way – while also placing a ransom money note that points out the need for the targets to impact the repayment for the objective of decrypting the records or restoring the documents system back to the first problem. In most instances, the ransom money note will show up when the customer reboots the PC after the system has already been damaged.

TrojanDropper:Win32/Microjoin.C distribution channels.

In numerous corners of the globe, TrojanDropper:Win32/Microjoin.C grows by jumps and bounds. However, the ransom money notes and techniques of extorting the ransom quantity may vary depending upon certain neighborhood (regional) setups. The ransom money notes and techniques of obtaining the ransom money quantity may differ depending on certain local (regional) setups.

Ransomware injection

As an example:

    Faulty informs concerning unlicensed software.

    In particular locations, the Trojans commonly wrongfully report having detected some unlicensed applications enabled on the sufferer’s tool. The sharp then demands the individual to pay the ransom.

    Faulty declarations concerning prohibited material.

    In nations where software piracy is much less popular, this approach is not as effective for the cyber scams. Conversely, the TrojanDropper:Win32/Microjoin.C popup alert might falsely declare to be originating from a law enforcement organization and will report having situated kid porn or other illegal data on the gadget.

    TrojanDropper:Win32/Microjoin.C popup alert may wrongly declare to be acquiring from a regulation enforcement institution and also will certainly report having situated youngster pornography or other unlawful information on the gadget. The alert will in a similar way contain a demand for the individual to pay the ransom money.

Technical details

File Info:

crc32: B26B8E27
md5: f99d9825234e75226053ac8f275e82a8
name: F99D9825234E75226053AC8F275E82A8.mlw
sha1: 58e0aaca3d1ab6635011a14db3599da8d00effd2
sha256: 9d3fbc0f12288a2d7de71f55db01fafda32ac62ca59640da7daa5cd1b81ab9f5
sha512: bafd55288e86826182a17536ad7454e01ee6c832b7175d25c50ba47065e18cb6d3ee2fa557ece53b79db1c65b5a57a64ced8756c6508524e60db32ab3b18f98e
ssdeep: 768:IX2HBlE0iV86CbBoNrTl2d2jWyUKRyXb4j4nbNVex/fB/wl7W2AdnoVYG:C2HFiu62BoNrM2jPU5X8kpVepJaWU
type: PE32 executable (GUI) Intel 80386, for MS Windows

Version Info:

0: [No Data]

TrojanDropper:Win32/Microjoin.C also known as:

GridinSoft Trojan.Ransom.Gen
K7AntiVirus Riskware ( 0040eff71 )
Lionic Trojan.Win32.Microjoin.l4WK
Elastic malicious (high confidence)
DrWeb Trojan.MulDrop.1491
Cynet Malicious (score: 100)
CAT-QuickHeal Trojanpws.Ldpinch.16974
ALYac Trojan.Dropper.Microjoin.J
Cylance Unsafe
Zillya Dropper.Microjoin.Win32.5255
Sangfor Suspicious.Win32.Save.a
CrowdStrike win/malicious_confidence_90% (W)
Alibaba TrojanDropper:Win32/Microjoin.be3c889b
K7GW Riskware ( 0040eff71 )
Cybereason malicious.5234e7
Cyren W32/Joiner.B.gen!Eldorado
Symantec ML.Attribute.HighConfidence
ESET-NOD32 a variant of Win32/TrojanDropper.Microjoin.NAJ
APEX Malicious
Avast Win32:Joiner-H [Trj]
ClamAV Html.Trojan.LdPinchJM1-3
Kaspersky Trojan-Dropper.Win32.Microjoin.n
BitDefender Trojan.Dropper.Microjoin.J
NANO-Antivirus Trojan.Win32.Bancos.kurmx
MicroWorld-eScan Trojan.Dropper.Microjoin.J
Tencent Win32.Trojan-dropper.Microjoin.Efaz
Ad-Aware Trojan.Dropper.Microjoin.J
Sophos Mal/Generic-R + Troj/Goldun-E
Comodo TrojWare.Win32.TrojanDropper.Microjoin.~D@3193xx
BitDefenderTheta AI:Packer.486881771D
VIPRE Trojan.Win32.Generic!BT
TrendMicro TROJ_GLDDROP.B
McAfee-GW-Edition BehavesLike.Win32.VirRansom.pc
FireEye Generic.mg.f99d9825234e7522
Emsisoft Trojan.Dropper.Microjoin.J (B)
SentinelOne Static AI – Malicious PE
Jiangmin TrojanDropper.Microjoin.wx
Avira TR/PSW.LdPinch.jm1
Antiy-AVL Trojan/Generic.ASMalwS.10F0FD6
Microsoft TrojanDropper:Win32/Microjoin.C
GData Trojan.Dropper.Microjoin.J
AhnLab-V3 Trojan/Win32.Goldun.C11493
Acronis suspicious
McAfee BackDoor-CEO.c
MAX malware (ai score=100)
VBA32 Trojan-Droper.MTA.0465
Malwarebytes MachineLearning/Anomalous.100%
Panda Trj/Genetic.gen
TrendMicro-HouseCall TROJ_GLDDROP.B
Rising Trojan.DL.Microjoin.fj (CLASSIC)
Yandex Trojan.DR.Microjoin!SAtvfx+8bKw
Ikarus Trojan-PWS.Win32.LdPinch
MaxSecure Trojan.Malware.300983.susgen
Fortinet W32/Dropper.MLTR!tr
AVG Win32:Joiner-H [Trj]
Paloalto generic.ml

How to remove TrojanDropper:Win32/Microjoin.C 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 TrojanDropper:Win32/Microjoin.C 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 TrojanDropper:Win32/Microjoin.C 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: http://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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