Ransom:Win32/ContiCrypt!MTB

What is the Win32:Evo-gen [Trj] virus?
Written by Robert Bailey
Seeing the Ransom:Win32/ContiCrypt!MTB detection name usually means that your computer is in big danger. This computer virus can correctly be named as ransomware – sort of malware which ciphers your files and forces you to pay for their decryption. Stopping it requires some peculiar steps that must be taken as soon as possible.
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Ransom:Win32/ContiCrypt!MTB detection is a virus detection you can spectate in your system. It frequently shows up after the provoking activities on your PC – opening the untrustworthy email messages, clicking the advertisement in the Web or setting up the program from dubious sources. From the second it appears, you have a short time to act until it begins its malicious activity. And be sure – it is much better not to await these destructive effects.

What is Ransom:Win32/ContiCrypt!MTB virus?

Ransom:Win32/ContiCrypt!MTB is ransomware-type malware. It looks for the documents on your computer, ciphers it, and then asks you to pay the ransom for receiving the decryption key. Besides making your documents locked, this malware also does a lot of harm to your system. It alters the networking settings in order to prevent you from checking out the elimination articles or downloading the anti-malware program. In rare cases, Ransom:Win32/ContiCrypt!MTB can also prevent the setup of anti-malware programs.

Ransom:Win32/ContiCrypt!MTB Summary

In total, Ransom:Win32/ContiCrypt!MTB malware activities in the infected computer are next:

  • SetUnhandledExceptionFilter detected (possible anti-debug);
  • Behavioural detection: Executable code extraction – unpacking;
  • Yara rule detections observed from a process memory dump/dropped files/CAPE;
  • Creates RWX memory;
  • Guard pages use detected – possible anti-debugging.;
  • Attempts to connect to a dead IP:Port (255 unique times);
  • Dynamic (imported) function loading detected;
  • Enumerates running processes;
  • Reads data out of its own binary image;
  • CAPE extracted potentially suspicious content;
  • Creates an autorun.inf file;
  • Authenticode signature is invalid;
  • Writes a potential ransom message to disk;
  • Collects and encrypts information about the computer likely to send to C2 server;
  • Performs a large number of encryption calls using the same key possibly indicative of ransomware file encryption behavior;
  • Encrypting the documents kept on the target’s disks — so the victim cannot check these documents;
  • Blocking the launching of .exe files of security tools
  • Blocking the launching of installation files of security tools

Ransomware has been a horror story for the last 4 years. It is challenging to imagine a more dangerous malware for both individuals and companies. The algorithms utilized in Ransom:Win32/ContiCrypt!MTB (generally, RHA-1028 or AES-256) are not hackable – with minor exclusions. To hack it with a brute force, you need to have a lot more time than our galaxy actually exists, and possibly will exist. But that virus does not do all these unpleasant things without delay – it can take up to several hours to cipher all of your files. Thus, seeing the Ransom:Win32/ContiCrypt!MTB detection is a clear signal that you should begin the removal process.

Where did I get the Ransom:Win32/ContiCrypt!MTB?

Typical methods of Ransom:Win32/ContiCrypt!MTB injection are basic for all other ransomware examples. Those are one-day landing web pages where victims are offered to download the free program, so-called bait emails and hacktools. Bait e-mails are a quite new tactic in malware distribution – you receive the email that simulates some normal notifications about shippings or bank service conditions modifications. Inside of the email, there is a malicious MS Office file, or a link which leads to the exploit landing page.

Malicious email spam

Malicious email message. This one tricks you to open the phishing website.

Avoiding it looks quite uncomplicated, but still needs tons of attention. Malware can hide in various places, and it is better to prevent it even before it goes into your computer than to depend on an anti-malware program. General cybersecurity knowledge is just an essential item in the modern world, even if your relationship with a PC remains on YouTube videos. That may keep you a lot of money and time which you would spend while searching for a fixing guide.

Ransom:Win32/ContiCrypt!MTB malware technical details

File Info:

name: 1B7C8D81177204C1C364.mlw
path: /opt/CAPEv2/storage/binaries/7b8ceef482d52990e0bc7f46c73c9fa756c8ef3107e55c3af65defac5522f887
crc32: DD4D2A32
md5: 1b7c8d81177204c1c3640cfaef4f7126
sha1: 74388d6a24a707c722f0237c3e654d747367b8dc
sha256: 7b8ceef482d52990e0bc7f46c73c9fa756c8ef3107e55c3af65defac5522f887
sha512: 73288cbd4ceccd40f67dda3b697a78160826558e878c923dff9aaba309480d6b13bcb7327c733d1b5a159554425a5ac591025d11102379cbd736745b9a19485d
ssdeep: 24576:l/Fvl0vUEA9obiMebVtST6XhizSalqH0rLMxw1R/SG7V//Ejf8aWPH9yTxEGPGgb:lr
type: PE32 executable (console) Intel 80386, for MS Windows
tlsh: T1D3A5BFB876047DE6A66F537BDE96ADDC03B627239A8BA4CD806477C30563375FE02804
sha3_384: 2135d1d7ced474813f9f0e92b522055ef4b334ee68eb4c5dedd9357a3562e4d909372064cccd93e421827e5dafbded39
ep_bytes: e8dc050000e974feffffc20000558bec
timestamp: 2022-01-30 12:27:05

Version Info:

0: [No Data]

Ransom:Win32/ContiCrypt!MTB also known as:

BkavW32.AIDetect.malware1
LionicTrojan.Win32.Cryptor.j!c
MicroWorld-eScanTrojan.GenericKD.48257954
FireEyeTrojan.GenericKD.48257954
McAfeeArtemis!1B7C8D811772
MalwarebytesMalware.AI.3769947163
SangforRansom.Win32.Cryptor.gen
K7AntiVirusRiskware ( 00584baa1 )
AlibabaRansom:Win32/generic.ali2000010
K7GWRiskware ( 00584baa1 )
SymantecML.Attribute.HighConfidence
ESET-NOD32a variant of Generik.BUSVWRF
TrendMicro-HouseCallRansom_ContiCrypt.R06CC0DB722
Paloaltogeneric.ml
KasperskyHEUR:Trojan-Ransom.Win32.Cryptor.gen
BitDefenderTrojan.GenericKD.48257954
AvastWin32:Malware-gen
Ad-AwareTrojan.GenericKD.48257954
EmsisoftTrojan.GenericKD.48257954 (B)
TrendMicroRansom_ContiCrypt.R06CC0DB722
McAfee-GW-EditionArtemis!Trojan
SophosMal/Generic-S
APEXMalicious
GDataTrojan.GenericKD.48257954
JiangminTrojanSpy.KeyLogger.omx
AviraTR/AD.ContiRansom.ttggl
Antiy-AVLTrojan/Generic.ASMalwS.3523A71
ZoneAlarmHEUR:Trojan-Ransom.Win32.Cryptor.gen
MicrosoftRansom:Win32/ContiCrypt!MTB
CynetMalicious (score: 100)
AhnLab-V3Malware/Win.Malware-gen.C4949296
ALYacTrojan.GenericKD.48257954
MAXmalware (ai score=89)
CylanceUnsafe
RisingRansom.Cryptor!8.10A9 (CLOUD)
IkarusTrojan.ContiRansom
FortinetPossibleThreat.MPH.H
AVGWin32:Malware-gen
PandaTrj/CI.A

How to remove Ransom:Win32/ContiCrypt!MTB?

Ransom:Win32/ContiCrypt!MTB malware is incredibly hard to remove manually. It places its documents in several places throughout the disk, and can restore itself from one of the elements. Furthermore, various alterations in the windows registry, networking configurations and Group Policies are fairly hard to find and return to the original. It is much better to make use of a special tool – exactly, an anti-malware program. GridinSoft Anti-Malware will definitely fit the most ideal for malware elimination goals.

Why GridinSoft Anti-Malware? It is pretty lightweight and has its databases updated nearly every hour. In addition, it does not have such bugs and exposures as Microsoft Defender does. The combination of these facts makes GridinSoft Anti-Malware perfect for eliminating malware of any type.

Remove the viruses with GridinSoft Anti-Malware

  • Download and install GridinSoft Anti-Malware. After the installation, you will be offered to perform the Standard Scan. Approve this action.
  • Gridinsoft Anti-Malware during the scan process

  • Standard scan checks the logical disk where the system files are stored, together with the files of programs you have already installed. The scan lasts up to 6 minutes.
  • GridinSoft Anti-Malware scan results

  • When the scan is over, you may choose the action for each detected virus. For all files of [SHORT_NAME] the default option is “Delete”. Press “Apply” to finish the malware removal.
  • GridinSoft Anti-Malware - After Cleaning
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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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