Troj/Emotet-CSO

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

What is Troj/Emotet-CSO infection?

In this short article you will discover regarding the interpretation of Troj/Emotet-CSO and also its adverse impact on your computer. Such ransomware are a kind of malware that is clarified by on the internet frauds to require paying the ransom by a target.

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Most of the situations, Troj/Emotet-CSO virus will certainly instruct its sufferers to start funds transfer for the function of reducing the effects of the changes that the Trojan infection has actually presented to the sufferer’s device.

Troj/Emotet-CSO Summary

These alterations can be as complies with:

  • 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.
  • Mimics the system’s user agent string for its own requests;
  • Expresses interest in specific running processes;
  • HTTP traffic contains suspicious features which may be indicative of malware related traffic;
  • Performs some HTTP requests;
  • The binary likely contains encrypted or compressed data. In this case, encryption is a way of hiding virus’ code from antiviruses and virus’ analysts.
  • Attempts to modify proxy settings. This trick used for inject malware into connection between browser and server;
  • Ciphering the papers located on the sufferer’s disk drive — so the victim can no more use the information;
  • 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.

Troj/Emotet-CSO

One of the most common channels where Troj/Emotet-CSO Ransomware are infused are:

  • By ways of phishing e-mails;
  • As a repercussion of user winding up on a source that holds a harmful software program;

As soon as the Trojan is successfully injected, it will either cipher the information on the victim’s computer or avoid the tool from working in a proper manner – while additionally placing a ransom note that mentions the need for the targets to effect the repayment for the objective of decrypting the records or recovering the data system back to the first problem. In most instances, the ransom note will show up when the customer reboots the COMPUTER after the system has currently been harmed.

Troj/Emotet-CSO circulation networks.

In various edges of the globe, Troj/Emotet-CSO expands by jumps as well as bounds. Nevertheless, the ransom money notes and also tricks of extorting the ransom quantity might differ relying on particular local (local) settings. The ransom money notes and also methods of obtaining the ransom quantity might vary depending on particular regional (local) settings.

Ransomware injection

For example:

    Faulty signals regarding unlicensed software.

    In particular areas, the Trojans typically wrongfully report having identified some unlicensed applications enabled on the victim’s tool. The alert then requires the customer to pay the ransom.

    Faulty statements concerning illegal material.

    In countries where software application piracy is less prominent, this technique is not as effective for the cyber fraudulences. Additionally, the Troj/Emotet-CSO popup alert might incorrectly claim to be deriving from a police institution as well as will certainly report having located youngster pornography or various other illegal data on the device.

    Troj/Emotet-CSO popup alert may incorrectly assert to be deriving from a regulation enforcement institution and also will certainly report having situated youngster pornography or other unlawful information on the device. The alert will in a similar way include a need for the customer to pay the ransom.

Technical details

File Info:

crc32: 68762069
md5: a0744f3804d2f25ee57a46c024a9cfe6
name: upload_file
sha1: 9bb2576c6933772ea0713b48648f3df5b5fa466f
sha256: 0ded1ae648e87f4939ca2b3d92bcb02f9d12105a71acd1409b9ec4e25d86aa2d
sha512: 173e98160d633048244002d33efb530407b32206657e245aac0db99ceacac1ca9e5499559b1cc3823cf33e1b2d0a61c8735573cfecf88bced611677c19e669b0
ssdeep: 6144:/kWapAne67gZyRhpAyOZ1fN2gmAcMwfqx3gWhIQtGJBBCyBwXdYLjg:/6ALcq2ykNH5wfQ3g0dMJayaYL
type: PE32 executable (GUI) Intel 80386, for MS Windows

Version Info:

0: [No Data]

Troj/Emotet-CSO also known as:

GridinSoftTrojan.Ransom.Gen
BkavW32.AIDetectVM.malware1
Elasticmalicious (high confidence)
MicroWorld-eScanTrojan.GenericKD.44256804
FireEyeGeneric.mg.a0744f3804d2f25e
CAT-QuickHealTrojan.Emotet
ALYacTrojan.Agent.Emotet
VIPRETrojan.Win32.Generic!BT
AegisLabTrojan.Win32.Emotet.L!c
K7AntiVirusRiskware ( 0040eff71 )
BitDefenderTrojan.GenericKD.44256804
K7GWRiskware ( 0040eff71 )
CrowdStrikewin/malicious_confidence_60% (W)
TrendMicroTrojanSpy.Win32.EMOTET.SMU.hp
CyrenW32/Emotet.AWL.gen!Eldorado
SymantecML.Attribute.HighConfidence
APEXMalicious
AvastWin32:BankerX-gen [Trj]
ClamAVWin.Trojan.Generic-9784952-0
KasperskyHEUR:Trojan-Banker.Win32.Emotet.gen
AlibabaTrojan:Win32/EmotetCrypt.c900ae46
RisingTrojan.Generic@ML.86 (RDMK:CsHHkb4GwD/jQCrnbIw9bw)
Ad-AwareTrojan.GenericKD.44256804
EmsisoftTrojan.Emotet (A)
F-SecureTrojan.TR/AD.Emotet.frc
DrWebTrojan.DownLoader35.9139
InvinceaMal/Generic-R + Troj/Emotet-CSO
McAfee-GW-EditionBehavesLike.Win32.Dropper.gh
SophosTroj/Emotet-CSO
SentinelOneDFI – Suspicious PE
AviraTR/AD.Emotet.frc
MicrosoftTrojan:Win32/EmotetCrypt.ARK!MTB
GridinsoftRansom.Win32.Wacatac.oa!s1
ArcabitTrojan.Generic.D2A34E24
ZoneAlarmHEUR:Trojan-Banker.Win32.Emotet.gen
GDataTrojan.GenericKD.44256804
CynetMalicious (score: 100)
AhnLab-V3Malware/Win32.Generic.C4215912
McAfeeEmotet-FSF!A0744F3804D2
MAXmalware (ai score=88)
VBA32BScope.Trojan.Emotet
MalwarebytesTrojan.MalPack.TRE
PandaTrj/Genetic.gen
ESET-NOD32a variant of Win32/Kryptik.HHBZ
TrendMicro-HouseCallTrojanSpy.Win32.EMOTET.SMU.hp
TencentMalware.Win32.Gencirc.10ce0f42
IkarusTrojan-Banker.Emotet
eGambitUnsafe.AI_Score_99%
FortinetW32/Emotet.AMH!tr
BitDefenderThetaGen:NN.ZexaF.34590.DuW@aGbvXAke
AVGWin32:BankerX-gen [Trj]
Cybereasonmalicious.c69337
Paloaltogeneric.ml
Qihoo-360Generic/Trojan.090

How to remove Troj/Emotet-CSO virus?

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 Troj/Emotet-CSO 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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Full version of GridinSoft Anti-Malware

If the guide doesn’t help you to remove Troj/Emotet-CSO 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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