Worm:Win32/Slenfbot!D

Spectating the Worm:Win32/Slenfbot!D detection name usually means that your computer 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. Deleteing it requires some specific steps that must be done as soon as possible.

Worm:Win32/Slenfbot!D detection is a malware detection you can spectate in your computer. It often appears after the preliminary procedures on your computer – opening the untrustworthy e-mail messages, clicking the advertisement in the Internet or installing the program from untrustworthy resources. From the second it appears, you have a short time to do something about it before it starts its malicious activity. And be sure – it is better not to await these harmful actions.

What is Worm:Win32/Slenfbot!D virus?

Worm:Win32/Slenfbot!D is ransomware-type malware. It searches for the files on your disk drive, encrypts it, and after that asks you to pay the ransom for receiving the decryption key. Besides making your documents inaccessible, this malware additionally does a lot of damage to your system. It modifies the networking setups in order to avoid you from reading the elimination guides or downloading the anti-malware program. In some cases, Worm:Win32/Slenfbot!D can also stop the launching of anti-malware programs.

Worm:Win32/Slenfbot!D Summary

Summarizingly, Worm:Win32/Slenfbot!D virus actions 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;
  • Possible date expiration check, exits too soon after checking local time;
  • Anomalous file deletion behavior detected (10+);
  • A process attempted to delay the analysis task.;
  • Dynamic (imported) function loading detected;
  • Enumerates running processes;
  • Repeatedly searches for a not-found process, may want to run with startbrowser=1 option;
  • A process created a hidden window;
  • CAPE extracted potentially suspicious content;
  • Unconventionial language used in binary resources: Russian;
  • Authenticode signature is invalid;
  • Deletes its original binary from disk;
  • Checks for the presence of known windows from debuggers and forensic tools;
  • Likely virus infection of existing system binary;
  • Attempts to identify installed analysis tools by a known file location;
  • Checks the presence of disk drives in the registry, possibly for anti-virtualization;
  • Creates a copy of itself;
  • Ciphering the documents kept on the target’s disks — so the victim cannot use these files;
  • Blocking the launching of .exe files of security tools
  • Blocking the launching of installation files of security tools

Ransomware has actually been a major problem for the last 4 years. It is hard to imagine a more dangerous malware for both individual users and organizations. The algorithms utilized in Worm:Win32/Slenfbot!D (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 terrible things instantly – it may take up to a few hours to cipher all of your documents. Therefore, seeing the Worm:Win32/Slenfbot!D detection is a clear signal that you need to start the elimination process.

Where did I get the Worm:Win32/Slenfbot!D?

Common ways of Worm:Win32/Slenfbot!D injection are basic for all other ransomware variants. Those are one-day landing sites where users are offered to download the free software, so-called bait emails and hacktools. Bait e-mails are a pretty new method in malware spreading – you receive the email that imitates some regular notifications about deliveries or bank service conditions updates. Inside of the email, there is a malicious 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 quite uncomplicated, but still requires 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 knowledge is just an essential item in the modern-day world, even if your interaction with a computer stays on YouTube videos. That may keep you a great deal of time and money which you would certainly spend while trying to find a fixing guide.

Worm:Win32/Slenfbot!D malware technical details

File Info:

name: 6A56319D9BD5489E5B82.mlwpath: /opt/CAPEv2/storage/binaries/ed211b05803b2c36fbdfb86d500a4afc8dbe4bec819d3e61dff324216a8409f0crc32: ECE6F2ABmd5: 6a56319d9bd5489e5b82370834283d61sha1: 178358f8ecc12678295970497d69f3c9fda06a67sha256: ed211b05803b2c36fbdfb86d500a4afc8dbe4bec819d3e61dff324216a8409f0sha512: a8ae9bf3719d475b338b88b96c48475e5c7433c8db294f2a442f76dd3c91482ecbb41d1c878aae8e937999ab7507bfc034bf4f6cbdf539467352e661f40a05fbssdeep: 6144:wFSLWPQDdc8idypFkZwSSGiGEMPZGWBX69H5B08V1t:wyL+/BGWh69Hrtype: PE32 executable (GUI) Intel 80386, for MS Windowstlsh: T1174412257AF0C261C0E14136B5E9E45A712DB90C5FC8586FB38027D9B4316EC75EBA2Fsha3_384: 55a6724bceaa68aabd58d9914ee7dce18c63ed4afd1f515e1eb19cda899028bdbe424b532f5cf9bc586ef15485cef8c6ep_bytes: 90558bec81c47cfdffff4f46b8712540timestamp: 2009-01-02 03:45:48

Version Info:

CompanyName: Eper1 SoftwareFileDescription: Eper1 Internet BrowserFileVersion: 1190InternalName: Eper1LegalCopyright: Copyright © Eper1 Software 1995-2011OriginalFilename: Eper1.exeProductName: Eper1 Internet BrowserProductVersion: 11.01Translation: 0x0409 0x04b0

Worm:Win32/Slenfbot!D also known as:

Bkav W32.AIDetect.malware2
Lionic Hacktool.Win32.Krap.x!c
Elastic malicious (high confidence)
DrWeb Trojan.Packed.21467
MicroWorld-eScan Gen:Variant.Vundo.3
FireEye Generic.mg.6a56319d9bd5489e
Cylance Unsafe
VIPRE VirTool.Win32.Obfuscator.da!j (v)
Sangfor Exploit.Win32.ShellCode.gen
CrowdStrike win/malicious_confidence_100% (W)
Alibaba Exploit:Win32/ShellCode.3677c1b4
K7GW Trojan ( 0021925d1 )
K7AntiVirus Trojan ( 0021925d1 )
BitDefenderTheta Gen:NN.ZexaF.34212.qq1@a4agDulc
VirIT Trojan.Win32.Packed.BFTR
Cyren W32/S-78fa5fb3!Eldorado
Symantec W32.IRCBot.NG
ESET-NOD32 a variant of Win32/Kryptik.KWA
TrendMicro-HouseCall BKDR_QAKBOT.SMG
Avast Win32:Kryptik-AHL [Trj]
Cynet Malicious (score: 100)
Kaspersky Packed.Win32.Krap.ae
NANO-Antivirus Trojan.Win32.Pincav.imggm
SUPERAntiSpyware Trojan.Agent/Gen-Pervaser
Tencent Win32.Packed.Krap.Wpjq
Emsisoft Gen:Variant.Vundo.3 (B)
Comodo Malware@#q4moriw0a09w
Zillya Trojan.Kryptik.Win32.881670
TrendMicro BKDR_QAKBOT.SMG
McAfee-GW-Edition BehavesLike.Win32.PWSZbot.dm
Sophos ML/PE-A + Mal/FakeAV-BW
Paloalto generic.ml
Jiangmin Trojan/Generic.cwgz
eGambit Unsafe.AI_Score_92%
Avira TR/Crypt.XPACK.Gen
Arcabit Trojan.Vundo.3
ViRobot Worm.Win32.A.Net-Kolab.202888
Microsoft Worm:Win32/Slenfbot.gen!D
VBA32 Trojan.Zeus.EA.0999
MAX malware (ai score=100)
Malwarebytes Malware.AI.1553884152
APEX Malicious
Rising Exploit.ShellCode!8.2A (CLOUD)
Yandex Trojan.GenAsa!kUxYJGN2wsY
SentinelOne Static AI – Malicious PE
MaxSecure Trojan.Malware.300983.susgen
Fortinet W32/Kryptik.NAS!tr
AVG Win32:Kryptik-AHL [Trj]
Panda Bck/Qbot.AO

How to remove Worm:Win32/Slenfbot!D?

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.

Leave a Comment