Win32:GenMalicious-NTB [Trj]

What is the Win32:Evo-gen [Trj] virus?
Written by Robert Bailey
Seeing the Win32:GenMalicious-NTB [Trj] detection name usually means that your system is in big danger. This malware can correctly be identified as ransomware – sort of malware which ciphers your files and forces you to pay for their decryption. Deleteing it requires some unusual steps that must be done as soon as possible.
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Win32:GenMalicious-NTB [Trj] detection is a virus detection you can spectate in your system. It often appears after the provoking actions on your PC – opening the dubious email messages, clicking the advertisement in the Web or installing the program from dubious resources. From the instance it appears, you have a short time to act before it starts its malicious action. And be sure – it is better not to await these harmful things.

What is Win32:GenMalicious-NTB [Trj] virus?

Win32:GenMalicious-NTB [Trj] is ransomware-type malware. It searches for the documents on your disk, ciphers it, and then asks you to pay the ransom for getting the decryption key. Besides making your files inaccessible, this virus also does a lot of damage to your system. It changes the networking setups in order to stop you from looking for the removal guidelines or downloading the anti-malware program. Sometimes, Win32:GenMalicious-NTB [Trj] can even prevent the launching of anti-malware programs.

Win32:GenMalicious-NTB [Trj] Summary

In total, Win32:GenMalicious-NTB [Trj] malware activities in the infected system are next:

  • Behavioural detection: Executable code extraction – unpacking;
  • SetUnhandledExceptionFilter detected (possible anti-debug);
  • Yara rule detections observed from a process memory dump/dropped files/CAPE;
  • Creates RWX memory;
  • Terminates another process;
  • Possible date expiration check, exits too soon after checking local time;
  • Checks adapter addresses which can be used to detect virtual network interfaces;
  • Anomalous file deletion behavior detected (10+);
  • Dynamic (imported) function loading detected;
  • Performs HTTP requests potentially not found in PCAP.;
  • Enumerates running processes;
  • Expresses interest in specific running processes;
  • Repeatedly searches for a not-found process, may want to run with startbrowser=1 option;
  • Manipulates data from or to the Recycle Bin;
  • A process created a hidden window;
  • CAPE extracted potentially suspicious content;
  • Drops a binary and executes it;
  • The binary likely contains encrypted or compressed data.;
  • Authenticode signature is invalid;
  • Uses Windows utilities for basic functionality;
  • Uses Windows utilities for basic functionality;
  • Checks for the presence of known windows from debuggers and forensic tools;
  • Checks for the presence of known windows from debuggers and forensic tools;
  • A process attempted to delay the analysis task by a long amount of time.;
  • Created a process from a suspicious location;
  • Installs itself for autorun at Windows startup;
  • Installs itself for autorun at Windows startup;
  • Creates a hidden or system file;
  • Overwrites multiple files with zero bytes (hex 00) indicative of a wiper;
  • CAPE detected the VirLock malware family;
  • Deletes executed files from disk;
  • Attempts to disable UAC;
  • Anomalous binary characteristics;
  • Attempts to modify Explorer settings to prevent file extensions from being displayed;
  • Attempts to modify Explorer settings to prevent hidden files from being displayed;
  • Uses suspicious command line tools or Windows utilities;
  • Encrypting the documents kept on the target’s disk drives — 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 headache for the last 4 years. It is challenging to imagine a more harmful virus for both individuals and companies. The algorithms utilized in Win32:GenMalicious-NTB [Trj] (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 currently exists, and possibly will exist. But that virus does not do all these horrible things instantly – it may require up to several hours to cipher all of your files. Therefore, seeing the Win32:GenMalicious-NTB [Trj] detection is a clear signal that you need to start the elimination process.

Where did I get the Win32:GenMalicious-NTB [Trj]?

Common methods of Win32:GenMalicious-NTB [Trj] injection are usual for all other ransomware variants. Those are one-day landing web pages where victims are offered to download the free program, so-called bait e-mails and hacktools. Bait e-mails are a relatively new method in malware spreading – you receive the e-mail that mimics some normal notifications about deliveries or bank service conditions shifts. Inside of the email, there is a malicious MS Office file, or a link which opens the exploit landing page.

Malicious email spam

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

Preventing it looks fairly easy, but still needs tons of awareness. Malware can hide in various places, and it is much better to prevent it even before it goes into your system than to rely on an anti-malware program. Standard cybersecurity awareness is just an essential thing in the modern world, even if your relationship with a PC remains on YouTube videos. That can keep you a lot of money and time which you would certainly spend while searching for a fix guide.

Win32:GenMalicious-NTB [Trj] malware technical details

File Info:

name: 6E6EC945886DFADF3FEC.mlw
path: /opt/CAPEv2/storage/binaries/35eca156d1d849888de409efe37687e602ba3c8da2025a1de61b71d9e0466eeb
crc32: E0F2A826
md5: 6e6ec945886dfadf3fecefd337988d28
sha1: 08aebea8788f832070aaab34d7252dd8d1a789f1
sha256: 35eca156d1d849888de409efe37687e602ba3c8da2025a1de61b71d9e0466eeb
sha512: edaaaf6a3fc23976fb0b1157f659bcf31f5d24b9f62e4bdbb5facf5c1ece499477ab8d49c6f2f4ee9ea03225515fc7c98217c6763821c8db1fcacc661fcfe503
ssdeep: 24576:+8Xhymk9R+qfooPU9jDlKXFn81mbZ7FJjd:+8XVCR3VEwXRwkjH
type: PE32 executable (GUI) Intel 80386, for MS Windows
tlsh: T13C25E08EF64F98D8C51D887D442A757289809829374A8EF37D417DE332C8CEE6F3951A
sha3_384: 921319afd6b63f73d3605823827176657fc549525e32e98d6148f5dd396d4f62865adbfdbcad7317cf7b0c29e895470d
ep_bytes: e8a33a0f003d12ffffff0f8506000000
timestamp: 2015-02-07 09:53:36

Version Info:

0: [No Data]

Win32:GenMalicious-NTB [Trj] also known as:

Bkav W32.AIDetect.malware1
Elastic malicious (high confidence)
MicroWorld-eScan Win32.Virlock.Gen.3
FireEye Generic.mg.6e6ec945886dfadf
ALYac Win32.Virlock.Gen.3
Cylance Unsafe
Zillya Virus.Virlock.Win32.1
Sangfor Suspicious.Win32.Save.a
K7AntiVirus Trojan ( 0040fa481 )
K7GW Trojan ( 0040fa481 )
Cybereason malicious.5886df
Baidu Win32.Virus.Virlock.e
Cyren W32/S-ba55a747!Eldorado
Symantec ML.Attribute.HighConfidence
tehtris Generic.Malware
ESET-NOD32 a variant of Win32/Virlock.AH
APEX Malicious
ClamAV Win.Virus.Virlock-6804475-0
Kaspersky Virus.Win32.PolyRansom.f
BitDefender Win32.Virlock.Gen.3
SUPERAntiSpyware Ransom.PolyRansom/Variant
Avast Win32:GenMalicious-NTB [Trj]
Tencent Win32.Virus.Polyransom.Wrhe
Ad-Aware Win32.Virlock.Gen.3
Emsisoft Win32.Virlock.Gen.3 (B)
Comodo Virus.Win32.VirLock.GA@7lv9go
F-Secure Trojan.TR/Crypt.XPACK.Gen
DrWeb Win32.VirLock.16
VIPRE Win32.Virlock.Gen.3
TrendMicro PE_VIRLOCK.A
McAfee-GW-Edition BehavesLike.Win32.VirRansom.dc
Trapmine malicious.high.ml.score
Sophos ML/PE-A + W32/VirRnsm-C
Ikarus Virus.Win32.Virlock
GData Win32.Virlock.Gen.3
Jiangmin Win32/Polyransom.f
Avira TR/Crypt.XPACK.Gen
MAX malware (ai score=80)
Antiy-AVL Virus/Win32.PolyRansom.b
Arcabit Win32.Virlock.Gen.3
ZoneAlarm Virus.Win32.PolyRansom.f
Microsoft Ransom:Win32/ContiCrypt.LOD!MTB
Cynet Malicious (score: 100)
AhnLab-V3 Win32/Nabucur.D.X1505
McAfee W32/VirRansom.b
TACHYON Virus/W32.VirRansom.D
Malwarebytes PolyRansom.Virus.FileInfector.DDS
TrendMicro-HouseCall PE_VIRLOCK.A
Rising Virus.VirLock!1.A08A (CLASSIC)
SentinelOne Static AI – Malicious PE
Fortinet W32/Virlock.B
BitDefenderTheta AI:FileInfector.AE99F02013
AVG Win32:GenMalicious-NTB [Trj]
Panda Trj/Genetic.gen
CrowdStrike win/malicious_confidence_100% (W)

How to remove Win32:GenMalicious-NTB [Trj]?

Win32:GenMalicious-NTB [Trj] malware is incredibly hard to delete manually. It puts its data in multiple places throughout the disk, and can restore itself from one of the elements. In addition, various modifications in the windows registry, networking configurations and also Group Policies are quite hard to discover and return to the original. It is better to make use of a specific tool – exactly, an anti-malware program. GridinSoft Anti-Malware will definitely fit the best for virus removal goals.

Why GridinSoft Anti-Malware? It is really light-weight and has its databases updated just about every hour. In addition, it does not have such problems and vulnerabilities as Microsoft Defender does. The combination of these aspects makes GridinSoft Anti-Malware perfect for removing 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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