Crypt.38

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

What is Crypt.38 infection?

In this short article you will find concerning the definition of Crypt.38 as well as its negative influence on your computer system. Such ransomware are a form of malware that is specified by on-line scams to require paying the ransom by a victim.

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Most of the situations, Crypt.38 infection will certainly instruct its targets to start funds move for the function of counteracting the changes that the Trojan infection has actually introduced to the sufferer’s gadget.

Crypt.38 Summary

These alterations 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.
  • 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.
  • Network activity detected but not expressed in API logs. Microsoft built an API solution right into its Windows operating system it reveals network activity for all apps and programs that ran on the computer in the past 30-days. This malware hides network activity.
  • Anomalous binary characteristics. This is a way of hiding virus’ code from antiviruses and virus’ analysts.
  • Ciphering the papers situated on the sufferer’s hard drive — so the victim can no longer utilize the information;
  • Preventing regular accessibility to the sufferer’s workstation;
Similar behavior
Related domains
z.whorecord.xyzWin.Ransomware.Razy-7139876-0
a.tomx.xyzWin.Ransomware.Razy-7139876-0

Crypt.38

One of the most common channels through which Crypt.38 Trojans are infused are:

  • By means of phishing e-mails;
  • As a repercussion of customer winding up on a resource that holds a destructive software application;

As quickly as the Trojan is successfully infused, it will either cipher the information on the victim’s PC or stop the tool from operating in a correct manner – while additionally putting a ransom note that states the demand for the victims to effect the payment for the objective of decrypting the papers or restoring the file system back to the preliminary problem. In a lot of instances, the ransom note will show up when the customer restarts the PC after the system has actually currently been harmed.

Crypt.38 circulation channels.

In numerous edges of the globe, Crypt.38 expands by leaps as well as bounds. However, the ransom notes as well as techniques of extorting the ransom amount might differ depending upon particular regional (regional) settings. The ransom money notes and also tricks of extorting the ransom amount may differ depending on specific regional (local) setups.

Ransomware injection

For example:

    Faulty informs regarding unlicensed software program.

    In specific areas, the Trojans commonly wrongfully report having found some unlicensed applications enabled on the victim’s tool. The sharp then requires the customer to pay the ransom money.

    Faulty statements about prohibited material.

    In nations where software program piracy is less preferred, this method is not as reliable for the cyber scams. Alternatively, the Crypt.38 popup alert might wrongly claim to be originating from a police institution as well as will certainly report having situated youngster porn or various other unlawful data on the device.

    Crypt.38 popup alert may wrongly claim to be obtaining from a regulation enforcement institution and will certainly report having located child pornography or various other illegal information on the device. The alert will similarly have a requirement for the individual to pay the ransom money.

Technical details

File Info:

crc32: 9CEC5593
md5: 4f33910a926f814f08edd19dec3ae6e1
name: 4F33910A926F814F08EDD19DEC3AE6E1.mlw
sha1: 6f63f8104afd7a733576b83ef12625323ddb6b7b
sha256: f2129587134d05563981d8faed73d7fe7a5323c953948cc10e3f1f8fa67008cf
sha512: 72420dcd472060d898ba42363a36e311c991d712b232e632d0853dcd446b2dd60f314f38b5ec52d5c7a62f8800a0f58ffed7228938b2c3e6cfb0ce1b00617048
ssdeep: 768:2KjU89WHzaCoPVwfqIcC+fkkQ3miL2X8TRay2TxaqFHH4A/xypfco/ZJD:uLUmfqnFfe2iL2Mdn2TxfJH4A5mfr
type: PE32 executable (GUI) Intel 80386, for MS Windows

Version Info:

0: [No Data]

Crypt.38 also known as:

GridinSoftTrojan.Ransom.Gen
BkavW32.AIDetect.malware1
Elasticmalicious (high confidence)
ClamAVWin.Ransomware.Razy-7139876-0
FireEyeGeneric.mg.4f33910a926f814f
CAT-QuickHealRansom.Exxroute.A4
McAfeeRansom-Spora!4F33910A926F
CylanceUnsafe
ZillyaTrojan.Kryptik.Win32.1094312
AegisLabTrojan.Multi.Generic.4!c
SangforTrojan.Win32.Save.a
K7AntiVirusTrojan ( 00515aa21 )
BitDefenderGen:Variant.Crypt.38
K7GWTrojan ( 005054af1 )
Cybereasonmalicious.a926f8
BaiduWin32.Trojan.Kryptik.bjm
CyrenW32/Ransom.GSCB-7363
SymantecPacked.Generic.493
APEXMalicious
AvastWin32:Filecoder-BD [Trj]
CynetMalicious (score: 100)
KasperskyHEUR:Trojan.Win32.Generic
NANO-AntivirusTrojan.Win32.Kryptik.emgxce
MicroWorld-eScanGen:Variant.Crypt.38
RisingRansom.Spora!8.E3EE (RDMK:cmRtazrG1TI4cVoYYvHhTgXdpj4F)
Ad-AwareGen:Variant.Crypt.38
EmsisoftTrojan-Ransom.Spora (A)
ComodoTrojWare.Win32.Crypt.C@7vajd0
F-SecureHeuristic.HEUR/AGEN.1105007
DrWebTrojan.Encoder.10103
VIPRETrojan.Win32.Generic!BT
TrendMicroRansom_SPORA.F117BM
McAfee-GW-EditionBehavesLike.Win32.Trojan.lt
SophosML/PE-A + Mal/Elenoocka-E
SentinelOneStatic AI – Malicious PE
JiangminTrojan.Generic.aswgs
AviraHEUR/AGEN.1105007
MAXmalware (ai score=85)
KingsoftWin32.Troj.Undef.(kcloud)
MicrosoftRansom:Win32/Spora.A
ArcabitTrojan.Crypt.38
ZoneAlarmHEUR:Trojan.Win32.Generic
GDataGen:Variant.Crypt.38
AhnLab-V3Trojan/Win32.Spora.R196565
BitDefenderThetaGen:NN.ZexaF.34590.eqW@aWBwlGn
ALYacGen:Variant.Crypt.38
VBA32BScope.Trojan.Encoder
MalwarebytesRansom.Spora
PandaTrj/GdSda.A
ESET-NOD32a variant of Win32/Kryptik.FOOM
TrendMicro-HouseCallRansom_SPORA.F117BM
TencentMalware.Win32.Gencirc.10b58d66
YandexTrojan.GenAsa!E25w4MXRAUg
IkarusTrojan-Ransom.Spora
eGambitUnsafe.AI_Score_94%
FortinetW32/Kryptik.GJSH!tr
WebrootTrojan.Dropper.Gen
AVGWin32:Filecoder-BD [Trj]
Paloaltogeneric.ml
CrowdStrikewin/malicious_confidence_100% (D)
Qihoo-360Win32/Trojan.8c6

How to remove Crypt.38 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 Crypt.38 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 Crypt.38 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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