Win32/Filecoder.Lorenz.C

What is the Win32:Evo-gen [Trj] virus?
Written by Robert Bailey
Spectating the Win32/Filecoder.Lorenz.C detection name usually means that your system is in big danger. This malware can correctly be named as ransomware – type of malware which encrypts your files and forces you to pay for their decryption. Removing it requires some peculiar steps that must be done as soon as possible.
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Win32/Filecoder.Lorenz.C detection is a virus detection you can spectate in your system. It frequently shows up after the provoking activities on your PC – opening the suspicious email, clicking the banner in the Web or installing the program from dubious sources. From the moment it appears, you have a short time to do something about it before it begins its destructive activity. And be sure – it is better not to wait for these malicious actions.

What is Win32/Filecoder.Lorenz.C virus?

Win32/Filecoder.Lorenz.C is ransomware-type malware. It searches for the documents on your disk drives, ciphers it, and then asks you to pay the ransom for getting the decryption key. Besides making your files locked, this malware additionally does a lot of harm to your system. It changes the networking setups in order to prevent you from checking out the removal guidelines or downloading the antivirus. In rare cases, Win32/Filecoder.Lorenz.C can also prevent the launching of anti-malware programs.

Win32/Filecoder.Lorenz.C Summary

In summary, Win32/Filecoder.Lorenz.C ransomware actions in the infected PC are next:

  • Executed a command line with /C or /R argument to terminate command shell on completion which can be used to hide execution;
  • Yara rule detections observed from a process memory dump/dropped files/CAPE;
  • Executed a command line with /V argument which modifies variable behaviour and whitespace allowing for increased obfuscation options;
  • The binary contains an unknown PE section name indicative of packing;
  • Authenticode signature is invalid;
  • Uses Windows utilities for basic functionality;
  • Attempts to modify desktop wallpaper;
  • Performs a large number of encryption calls using the same key possibly indicative of ransomware file encryption behavior;
  • Exhibits possible ransomware file modification behavior;
  • CAPE detected the Lorenz malware family;
  • Attempts to modify proxy settings;
  • Encrypting the files located on the target’s disks — so the victim cannot use these documents;
  • Blocking the launching of .exe files of security tools
  • Blocking the launching of installation files of anti-virus apps

Ransomware has actually been a nightmare for the last 4 years. It is hard to picture a more harmful virus for both individuals and organizations. The algorithms used in Win32/Filecoder.Lorenz.C (generally, RHA-1028 or AES-256) are not hackable – with minor exclusions. To hack it with a brute force, you need to have more time than our galaxy already 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. Hence, seeing the Win32/Filecoder.Lorenz.C detection is a clear signal that you have to start the removal process.

Where did I get the Win32/Filecoder.Lorenz.C?

Typical methods of Win32/Filecoder.Lorenz.C distribution are common for all other ransomware variants. Those are one-day landing websites where victims are offered to download the free program, so-called bait emails and hacktools. Bait emails are a relatively modern strategy in malware distribution – you get the email that imitates some routine notifications about deliveries or bank service conditions modifications. Within the e-mail, there is an infected MS Office file, or a web link which leads to the exploit landing site.

Malicious email spam

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

Preventing it looks pretty uncomplicated, however, still needs a lot of recognition. Malware can hide in various spots, and it is better to prevent it even before it gets into your system than to depend on an anti-malware program. Basic cybersecurity knowledge is just an important item in the modern-day world, even if your interaction with a computer stays on YouTube videos. That can save you a great deal of time and money which you would spend while searching for a fix guide.

Win32/Filecoder.Lorenz.C malware technical details

File Info:

name: 24F626C3ED0587515F77.mlw
path: /opt/CAPEv2/storage/binaries/40ff1ab8ac09057421079dae83fb675d7a2a3da6c7d0cd6400a0d720c5b0f58c
crc32: D2F93611
md5: 24f626c3ed0587515f770a5e90472633
sha1: 50cbe18fa80049cae2a96916373798bba6a9f650
sha256: 40ff1ab8ac09057421079dae83fb675d7a2a3da6c7d0cd6400a0d720c5b0f58c
sha512: 1d6026bc31f07513f56e42c17916424a2b417b0d8454f605cab7e8d3223cd1ad5f79e635f73511f41479903547257feb1a7909cac03480808f1f8f863cfba39c
ssdeep: 24576:CSutcjhp9+ldf2AnSsKyImZMkBhfvnQw2M20HDNw0:qtcjhp9a0AS5mZMkBxvthbj60
type: PE32 executable (console) Intel 80386, for MS Windows
tlsh: T1FF355B01AB919138F9B306F68EFE545D993DBE911B2580CB92CC54DF1A39AE0BD32713
sha3_384: 9cba61fd21cbb1210da9584c5bcdb39d338ab39732218411d03810f390c228c9c5ca02a72015af8964585605eb3a2649
ep_bytes: 558bece888fdffff5dc3cccccccccccc
timestamp: 2021-06-09 15:02:18

Version Info:

0: [No Data]

Win32/Filecoder.Lorenz.C also known as:

Bkav W32.AIDetect.malware2
Lionic Trojan.Win32.Generic.j!c
MicroWorld-eScan Gen:Variant.Doina.31028
FireEye Generic.mg.24f626c3ed058751
ALYac Trojan.Ransom.Filecoder
Zillya Trojan.Filecoder.Win32.21036
Sangfor Trojan.Win32.Save.a
K7AntiVirus Trojan ( 0058b5d91 )
BitDefender Gen:Variant.Doina.31028
K7GW Trojan ( 0058b5d91 )
CrowdStrike win/malicious_confidence_100% (W)
BitDefenderTheta Gen:NN.ZexaF.34646.dDW@aCiCHupi
Cyren W32/Trojan.LZKO-8807
Symantec Trojan Horse
Elastic malicious (high confidence)
ESET-NOD32 a variant of Win32/Filecoder.Lorenz.C
Paloalto generic.ml
Kaspersky HEUR:Trojan-Ransom.Win32.Generic
Alibaba Ransom:Win32/Lorenz.4f7c265b
Avast Win32:MalwareX-gen [Trj]
Rising [email protected] (RDML:QdEEQXSbcVjskSFBqoZSQA)
Ad-Aware Gen:Variant.Doina.31028
TACHYON Trojan/W32.Witch.1107456
Emsisoft Gen:Variant.Doina.31028 (B)
F-Secure Heuristic.HEUR/AGEN.1247088
VIPRE Gen:Variant.Doina.31028
TrendMicro Ransom.Win32.LORENZ.SMYXCD3
McAfee-GW-Edition BehavesLike.Win32.Worm.th
Trapmine suspicious.low.ml.score
Sophos Mal/Generic-S
Ikarus Trojan-Ransom.FileCrypter
GData Gen:Variant.Doina.31028
Jiangmin Trojan.Generic.hgkrf
Webroot W32.Malware.Gen
Google Detected
Avira HEUR/AGEN.1247088
Kingsoft Win32.Troj.Undef.(kcloud)
Arcabit Trojan.Doina.D7934
ZoneAlarm HEUR:Trojan-Ransom.Win32.Generic
Microsoft Ransom:Win32/Lorenz.MAK!MTB
Cynet Malicious (score: 100)
AhnLab-V3 Trojan/Win.Generic.C4512583
McAfee Artemis!24F626C3ED05
MAX malware (ai score=100)
VBA32 BScope.Trojan.Downloader
Cylance Unsafe
Tencent Win32.Trojan.Filecoder.Umhl
Yandex Trojan.Witch!+N+mbhBkBDU
SentinelOne Static AI – Suspicious PE
MaxSecure Trojan.Malware.300983.susgen
Fortinet W32/Lorenz.B!tr.ransom
AVG Win32:MalwareX-gen [Trj]
Panda Trj/GdSda.A

How to remove Win32/Filecoder.Lorenz.C?

Win32/Filecoder.Lorenz.C malware is extremely hard to delete by hand. It puts its data in a variety of locations throughout the disk, and can restore itself from one of the parts. Additionally, a number of modifications in the registry, networking setups and Group Policies are really hard to locate and return to the initial. It is better to make use of a special app – exactly, an anti-malware tool. GridinSoft Anti-Malware will definitely fit the best for virus removal reasons.

Why GridinSoft Anti-Malware? It is very light-weight and has its databases updated nearly every hour. In addition, it does not have such problems and exposures as Microsoft Defender does. The combination of these aspects makes GridinSoft Anti-Malware perfect for getting rid of malware of any kind.

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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