Win32/Agent.NBJ

Spectating the Win32/Agent.NBJ detection name usually means that your computer is in big danger. This malware can correctly be identified as ransomware – sort of malware which encrypts your files and asks you to pay for their decryption. Deleteing it requires some specific steps that must be taken as soon as possible.

Win32/Agent.NBJ detection is a virus detection you can spectate in your computer. It usually shows up after the preliminary activities on your computer – opening the suspicious email messages, clicking the advertisement in the Web or mounting the program from dubious resources. From the instance it shows up, you have a short time to do something about it until it starts its destructive action. And be sure – it is better not to await these harmful effects.

What is Win32/Agent.NBJ virus?

Win32/Agent.NBJ is ransomware-type malware. It looks for the documents on your disk, ciphers it, and after that asks you to pay the ransom for receiving the decryption key. Besides making your files locked, this malware also does a lot of damage to your system. It changes the networking setups in order to prevent you from looking for the elimination guidelines or downloading the anti-malware program. Sometimes, Win32/Agent.NBJ can additionally stop the setup of anti-malware programs.

Win32/Agent.NBJ Summary

In total, Win32/Agent.NBJ ransomware activities in the infected system are next:

  • Anomalous file deletion behavior detected (10+);
  • 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;
  • Unconventionial language used in binary resources: Chinese (Simplified);
  • Authenticode signature is invalid;
  • Exhibits possible ransomware file modification behavior;
  • Encrypting the files located on the target’s drive — so the victim cannot open these documents;
  • Blocking the launching of .exe files of anti-virus apps
  • Blocking the launching of installation files of security tools

Ransomware has been a nightmare for the last 4 years. It is challenging to imagine a more hazardous virus for both individual users and corporations. The algorithms used in Win32/Agent.NBJ (usually, 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 already exists, and possibly will exist. But that malware does not do all these bad things instantly – it can take up to a few hours to cipher all of your documents. Therefore, seeing the Win32/Agent.NBJ detection is a clear signal that you should start the elimination procedure.

Where did I get the Win32/Agent.NBJ?

Routine tactics of Win32/Agent.NBJ spreading are common for all other ransomware examples. Those are one-day landing sites where victims are offered to download and install the free program, so-called bait emails and hacktools. Bait e-mails are a relatively new method in malware spreading – you get the e-mail that simulates some standard notifications about shippings or bank service conditions shifts. Within the email, there is an infected MS Office file, or a web link which opens the exploit landing site.

Malicious email spam

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

Avoiding it looks fairly simple, but still demands tons of awareness. Malware can hide in different spots, and it is better to prevent it even before it goes into your computer than to rely upon an anti-malware program. Essential cybersecurity knowledge is just an essential item in the modern world, even if your relationship with a computer stays on YouTube videos. That can keep you a great deal of money and time which you would certainly spend while searching for a solution.

Win32/Agent.NBJ malware technical details

File Info:

name: D3FF6BA0D457B56E6DD0.mlwpath: /opt/CAPEv2/storage/binaries/cf2e68ca44b70914a9cb5c8955f7aa261e2a1f3cd813e06d78eae9c99cee7482crc32: F439845Emd5: d3ff6ba0d457b56e6dd0fc71bb9010bcsha1: e68800eb74d35dfb3a186514243c171458444ebdsha256: cf2e68ca44b70914a9cb5c8955f7aa261e2a1f3cd813e06d78eae9c99cee7482sha512: 4fe7207c531824c1c3e51c9310dad071dc02a62079e94919d473cbfedc9a6d201bdabae9337a10eecfe1e85055cab652eea42075622821abde3fa72f7ce388a4ssdeep: 6144:RqjZht3L2fLgQm9yGjvdRpR4PWqjZht3L2fLgQm9yGjvdRpR4Pz:2fV2jg8fV2jgctype: PE32 executable (GUI) Intel 80386, for MS Windowstlsh: T176A4E7A7FC9A248AE74EDA3750D6388EE9B43C6E43C01E3F21317155B567BA0507EC1Asha3_384: 18db6563b681cf574a24f76ac1d9c11b1a14e224b8444dc5a0231bfd7ebee5cdf97a541986fe7b09bfcabb75eb31470eep_bytes: 558bec6aff684031400068b022400064timestamp: 2011-03-15 04:06:07

Version Info:

0: [No Data]

Win32/Agent.NBJ also known as:

DrWeb Trojan.Encoder.185
MicroWorld-eScan Trojan.GenericKD.34110279
FireEye Generic.mg.d3ff6ba0d457b56e
CAT-QuickHeal W32.Zombie.A4
McAfee GenericRXNR-SA!D3FF6BA0D457
Cylance Unsafe
Zillya Trojan.Cosmu.Win32.12187
K7AntiVirus Trojan ( 0055e3dd1 )
K7GW Trojan ( 0055e3dd1 )
Cybereason malicious.0d457b
BitDefenderTheta Gen:NN.ZexaF.34182.CqZ@aGBV9uib
Cyren W32/Cosmu.H.gen!Eldorado
Symantec ML.Attribute.HighConfidence
ESET-NOD32 Win32/Agent.NBJ
TrendMicro-HouseCall TROJ_SPNR.15CC13
ClamAV Win.Trojan.Cosmu-1058
Kaspersky Trojan.Win32.Cosmu.bwts
BitDefender Trojan.GenericKD.34110279
NANO-Antivirus Trojan.Win32.Cosmu.bgzaxj
Avast Win32:RansomX-gen [Ransom]
Tencent Virus.Win32.Cosmu.a
Sophos Mal/Behav-112
Comodo TrojWare.Win32.Agent.NBJ@4xjtww
VIPRE Trojan.Win32.Cosmu.bwts (v)
TrendMicro TROJ_SPNR.15CC13
McAfee-GW-Edition BehavesLike.Win32.PWSZbot.gt
Emsisoft Trojan.GenericKD.34110279 (B)
Ikarus Trojan.Win32.Cosmu
Jiangmin Trojan/Cosmu.ppf
Avira TR/ATRAPS.Gen
MAX malware (ai score=89)
Antiy-AVL Trojan/Generic.ASMalwS.13CA44
Kingsoft Heur.SSC.2787082.0010.(kcloud)
Microsoft Trojan:Win32/Zombie.A
GData Trojan.GenericKD.34110279
Cynet Malicious (score: 100)
AhnLab-V3 Trojan/Win32.Cosmu.R51515
VBA32 Trojan.Cosmu
ALYac Trojan.GenericKD.34110279
APEX Malicious
Rising Trojan.Zombie!8.2DA5 (RDMK:cmRtazqZA6YRCTDRdADX/kB5jVbL)
Yandex Trojan.GenAsa!qZCC7vZoV+4
eGambit Unsafe.AI_Score_58%
Fortinet W32/Agent.NBJ!tr
AVG Win32:RansomX-gen [Ransom]
Panda Trj/Genetic.gen
CrowdStrike win/malicious_confidence_60% (D)

How to remove Win32/Agent.NBJ?

About the author

Robert Bailey

Security engineer focused on malware behavior, removal workflows, and Windows hardening. Robert reviews threat articles for practical accuracy, checking detection names, symptoms, and cleanup steps before publication.

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