Ransom:Win32/FileCoder!MTB

What is the Win32:Evo-gen [Trj] virus?
Written by Robert Bailey
Seeing the Ransom:Win32/FileCoder!MTB detection name usually means that your computer is in big danger. This malware can correctly be named as ransomware – sort of malware which encrypts your files and forces you to pay for their decryption. Removing it requires some peculiar steps that must be taken as soon as possible.
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Ransom:Win32/FileCoder!MTB detection is a virus detection you can spectate in your computer. It often shows up after the provoking procedures on your PC – opening the dubious email messages, clicking the banner in the Web or mounting the program from dubious sources. From the instance it shows up, you have a short time to do something about it before it begins its destructive activity. And be sure – it is far better not to await these destructive effects.

What is Ransom:Win32/FileCoder!MTB virus?

Ransom:Win32/FileCoder!MTB is ransomware-type malware. It searches for the files on your computer, encrypts it, and then asks you to pay the ransom for getting the decryption key. Besides making your documents inaccessible, this malware additionally does a lot of harm to your system. It changes the networking setups in order to avoid you from checking out the removal manuals or downloading the antivirus. Sometimes, Ransom:Win32/FileCoder!MTB can even prevent the setup of anti-malware programs.

Ransom:Win32/FileCoder!MTB Summary

In summary, Ransom:Win32/FileCoder!MTB malware activities in the infected system 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;
  • Possible date expiration check, exits too soon after checking local time;
  • Guard pages use detected – possible anti-debugging.;
  • Dynamic (imported) function loading detected;
  • Reads data out of its own binary image;
  • Manipulates data from or to the Recycle Bin;
  • CAPE extracted potentially suspicious content;
  • Drops a binary and executes it;
  • The binary contains an unknown PE section name indicative of packing;
  • The binary likely contains encrypted or compressed data.;
  • Authenticode signature is invalid;
  • Queries information on disks, possibly for anti-virtualization;
  • Checks for the presence of known windows from debuggers and forensic tools;
  • Installs itself for autorun at Windows startup;
  • Checks for the presence of known devices from debuggers and forensic tools;
  • Checks the version of Bios, possibly for anti-virtualization;
  • Detects VirtualBox through the presence of a registry key;
  • Detected Armadillo packer using a known mutex;
  • Detected Armadillo packer using a known registry key;
  • Collects information to fingerprint the system;
  • Anomalous binary characteristics;
  • Ciphering the files located on the target’s disk — so the victim cannot check these files;
  • Blocking the launching of .exe files of anti-malware apps
  • Blocking the launching of installation files of anti-virus apps

Ransomware has been a nightmare for the last 4 years. It is difficult to picture a more dangerous virus for both individuals and companies. The algorithms utilized in Ransom:Win32/FileCoder!MTB (generally, RHA-1028 or AES-256) are not hackable – with minor exclusions. To hack it with a brute force, you need more time than our galaxy actually exists, and possibly will exist. However, that malware does not do all these horrible things immediately – it may take up to a few hours to cipher all of your documents. Therefore, seeing the Ransom:Win32/FileCoder!MTB detection is a clear signal that you need to start the clearing process.

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

Ordinary methods of Ransom:Win32/FileCoder!MTB distribution are common for all other ransomware examples. Those are one-day landing web pages where users are offered to download and install the free program, so-called bait emails and hacktools. Bait emails are a pretty modern method in malware spreading – you get the email that imitates some normal notifications about deliveries or bank service conditions changes. 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.

Preventing it looks pretty uncomplicated, but still needs tons of focus. Malware can hide in different spots, and it is much better to prevent it even before it gets into your PC than to rely on an anti-malware program. Simple cybersecurity awareness is just an important item in the modern world, even if your interaction with a PC remains on YouTube videos. That can save you a lot of money and time which you would spend while searching for a fixing guide.

Ransom:Win32/FileCoder!MTB malware technical details

File Info:

name: CF2843F5E54F1B3303C3.mlw
path: /opt/CAPEv2/storage/binaries/cb561cc6062dfa270c61814091c6f249201ab0d1724ec8cfee7e2609b1778a62
crc32: 8783F730
md5: cf2843f5e54f1b3303c3e367ff5198cb
sha1: 122f969cec99df86a52ca79abf312dc7123a0373
sha256: cb561cc6062dfa270c61814091c6f249201ab0d1724ec8cfee7e2609b1778a62
sha512: 2350ea0ddae288f6bac90b6dd6b44f920bf32bdccc9fcfcdb05cacacff840ab6796c184037e99a49245e54f2bf419cbaa47bbe39eda49024e64cdc77e7d5383b
ssdeep: 49152:wW8kMk3Jq/24zRC6B3WTz/tXr9itMyMpy7n7qgHFa6BEmv1q:5mqJyrRC7XrIPWGnRFa01vw
type: PE32 executable (GUI) Intel 80386, for MS Windows
tlsh: T1D3F5BDF366CC7213DC83393395B26D3AAF5365A8EDD2939EE104ED6AE57118BD800E41
sha3_384: 3a3c48ea6acde472b43fd9db36d45bcbae87c2fe4a68fc3df06d37384f07b376734e44ce068a1227b048aedaf9fa25cd
ep_bytes: 60e8000000005d50510fcaf7d29cf7d2
timestamp: 2014-02-27 06:41:59

Version Info:

0: [No Data]

Ransom:Win32/FileCoder!MTB also known as:

BkavW32.AIDetect.malware2
Elasticmalicious (high confidence)
MicroWorld-eScanTrojan.GenericKD.47489099
FireEyeGeneric.mg.cf2843f5e54f1b33
ALYacTrojan.GenericKD.47489099
CylanceUnsafe
K7AntiVirusTrojan ( 0058dc751 )
BitDefenderTrojan.GenericKD.47489099
K7GWTrojan ( 0058dc751 )
CrowdStrikewin/malicious_confidence_90% (W)
CyrenW32/Graftor.GA.gen!Eldorado
ESET-NOD32Win32/Filecoder.DG
APEXMalicious
AvastWin32:Malware-gen
CynetMalicious (score: 100)
KasperskyHEUR:Trojan.Win32.Generic
NANO-AntivirusTrojan.Win32.FKM.eraoln
RisingRansom.Filecoder!1.A841 (CLASSIC)
SophosMal/Generic-S
DrWebTrojan.MulDrop5.32888
ZillyaTrojan.Filecoder.Win32.3858
TrendMicroRansom_FileCoder.R03BC0DB222
EmsisoftTrojan.GenericKD.47489099 (B)
SentinelOneStatic AI – Malicious PE
JiangminTrojan.Generic.hdver
AviraHEUR/AGEN.1115224
MicrosoftRansom:Win32/FileCoder!MTB
GDataTrojan.GenericKD.47489099
AhnLab-V3Trojan/Win.Fakon.R453283
McAfeeGenericRXRQ-SP!CF2843F5E54F
MAXmalware (ai score=82)
VBA32Trojan.MulDrop
MalwarebytesMalware.AI.3987974489
PandaTrj/Genetic.gen
TrendMicro-HouseCallRansom_FileCoder.R03BC0DB222
MaxSecureTrojan.Malware.300983.susgen
FortinetW32/Graftor.FL!tr
BitDefenderThetaGen:NN.ZexaF.34182.mRZ@amPFkiji
AVGWin32:Malware-gen

How to remove Ransom:Win32/FileCoder!MTB?

Ransom:Win32/FileCoder!MTB malware is incredibly hard to eliminate by hand. It places its files in multiple locations throughout the disk, and can recover itself from one of the parts. Additionally, countless alterations in the windows registry, networking setups and Group Policies are pretty hard to discover and change to the initial. It is better to use a special program – exactly, an anti-malware tool. GridinSoft Anti-Malware will definitely fit the most ideal for virus removal reasons.

Why GridinSoft Anti-Malware? It is really light-weight and has its detection databases updated just about every hour. In addition, it does not have such problems and exploits as Microsoft Defender does. The combination of these facts makes GridinSoft Anti-Malware suitable for getting rid of malware of any form.

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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