Sf:Crypt-BT [Trj] Virus Removal

Seeing the Sf:Crypt-BT [Trj] malware detection usually means that your computer is in big danger. This computer virus can correctly be named as ransomware – virus which ciphers your files and asks you to pay for their decryption. Removing it requires some peculiar steps that must be done as soon as possible.

Sf:Crypt-BT [Trj] detection is a malware detection you can spectate in your computer. It usually appears after the provoking activities on your PC – opening the suspicious email messages, clicking the banner in the Web or setting up the program from untrustworthy resources. From the instance it shows up, you have a short time to do something about it until it starts its malicious action. And be sure – it is far better not to await these destructive effects.

What is Sf:Crypt-BT [Trj] virus?

Sf:Crypt-BT [Trj] is ransomware-type malware. It looks for the documents on your disk, ciphers it, and then asks you to pay the ransom for receiving the decryption key. Besides making your documents inaccessible, this virus additionally does a ton of damage to your system. It alters the networking settings in order to prevent you from reading the removal guidelines or downloading the antivirus. In some cases, Sf:Crypt-BT [Trj] can additionally prevent the launching of anti-malware programs.

Sf:Crypt-BT [Trj] Summary

In total, Sf:Crypt-BT [Trj] malware activities in the infected system are next:

  • Sample contains Overlay data;
  • Uses Windows utilities for basic functionality;
  • Performs HTTP requests potentially not found in PCAP.;
  • Reads data out of its own binary image;
  • CAPE extracted potentially suspicious content;
  • Drops a binary and executes it;
  • The binary likely contains encrypted or compressed data.;
  • Authenticode signature is invalid;
  • Behavioural detection: Injection (inter-process);
  • Behavioural detection: Injection with CreateRemoteThread in a remote process;
  • Attempts to modify proxy settings;
  • Deletes executed files from disk;
  • Collects information to fingerprint the system;
  • Yara detections observed in process dumps, payloads or dropped files;
  • Ciphering the documents located on the target’s drives — so the victim cannot use these documents;
  • Blocking the launching of .exe files of anti-virus programs
  • Blocking the launching of installation files of anti-malware apps

Ransomware has actually been a nightmare for the last 4 years. It is challenging to imagine a more hazardous malware for both individual users and companies. The algorithms used in Sf:Crypt-BT [Trj] (typically, RHA-1028 or AES-256) are not hackable – with minor exclusions. To hack it with a brute force, you need to have a lot more time than our galaxy actually exists, and possibly will exist. But that virus does not do all these unpleasant things immediately – it may take up to several hours to cipher all of your files. Thus, seeing the Sf:Crypt-BT [Trj] detection is a clear signal that you must start the clearing process.

Where did I get the Sf:Crypt-BT [Trj]?

Standard methods of Sf:Crypt-BT [Trj] spreading are typical for all other ransomware examples. Those are one-day landing sites where users are offered to download and install the free program, so-called bait e-mails and hacktools. Bait e-mails are a pretty modern tactic in malware spreading – you get the email that imitates some regular notifications about shipments or bank service conditions updates. Inside of the email, there is a corrupted MS Office file, or a 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, however, still needs tons of attention. Malware can hide in different places, and it is much better to stop it even before it invades your system than to depend on an anti-malware program. General cybersecurity knowledge is just an important thing in the modern world, even if your relationship with a computer stays on YouTube videos. That can keep you a great deal of time and money which you would certainly spend while looking for a solution.

Sf:Crypt-BT [Trj] malware technical details

File Info:

name: E964264C54CCEBD4DA20.mlwpath: /opt/CAPEv2/storage/binaries/23d5e55fad57b1bf0f6a934c958e554fba139a7a2926b69b7c290a5f95a2887fcrc32: E4F5DCB9md5: e964264c54ccebd4da20a0997894401dsha1: e1ae3ab5ed27b4a7f308ab6725d76b376a943eb6sha256: 23d5e55fad57b1bf0f6a934c958e554fba139a7a2926b69b7c290a5f95a2887fsha512: 3dacbb2cdf39586d529b3a91f3fa304a3961e97e9a88532c12a8d05934ab0cb63ab429d416e372373bd57c086038056c427970987a33e49d460f19bf6aa86b18ssdeep: 3072:/im2sIUqeDPaHAfKDnyuxzP1L77fni/IG1shn662vhoi2j6fEzby5Ax:/i4TqeDPagfKDnyurjq/IRUv6iGy5Axtype: PE32 executable (GUI) Intel 80386, for MS Windowstlsh: T1BFD3B07AF481D0B5C9973674DEA9B62623FFCE2020399C93E3980D5528B5853B72E347sha3_384: 8dddd3185b6e329fac10b1c51a13c2a546b90e7f08b9093665ba62295b50cbe983871f408dc2b7278f882a3298c8eecdep_bytes: 558bec83ec0c536a0032dbe89deefffftimestamp: 2012-02-26 10:44:29

Version Info:

0: [No Data]

Sf:Crypt-BT [Trj] also known as:

Bkav W32.AIDetectMalware
Lionic Trojan.Win32.Zbot.l!c
Elastic malicious (high confidence)
DrWeb Trojan.PWS.Panda.368
MicroWorld-eScan Gen:Variant.Ransom.Natas.3
FireEye Generic.mg.e964264c54ccebd4
CAT-QuickHeal Trojan.Necurs.MUE.A3
Skyhigh BehavesLike.Win32.PWSZbot.ch
McAfee PWS-Zbot.gen.ave
Zillya Trojan.Zbot.Win32.60603
Sangfor Trojan.Win32.Save.a
K7AntiVirus Spyware ( 002891031 )
Alibaba TrojanPSW:Win32/GenMalicious.f3ae3aff
K7GW Spyware ( 002891031 )
CrowdStrike win/malicious_confidence_100% (D)
BitDefenderTheta Gen:NN.ZexaF.36744.imX@aucwBqf
VirIT Trojan.Win32.Generic.BXBH
Symantec Trojan.Zbot
tehtris Generic.Malware
ESET-NOD32 a variant of Win32/Spy.Zbot.YW
APEX Malicious
ClamAV Win.Spyware.Zbot-1275
Kaspersky HEUR:Trojan.Win32.Generic
BitDefender Gen:Variant.Ransom.Natas.3
NANO-Antivirus Trojan.Win32.Panda.ssflk
Avast Sf:Crypt-BT [Trj]
Tencent Trojan.Win32.Zbot.aaw
Emsisoft Gen:Variant.Ransom.Natas.3 (B)
Google Detected
F-Secure Trojan.TR/Kazy.MK
Baidu Win32.Trojan.Zbot.a
VIPRE Gen:Variant.Ransom.Natas.3
TrendMicro Cryp_Xin1
Trapmine malicious.high.ml.score
Sophos Troj/PWS-BSF
SentinelOne Static AI – Malicious PE
GData Gen:Variant.Ransom.Natas.3
Jiangmin Trojan/Generic.abgnz
Webroot W32.Infostealer.Zeus
Varist W32/Zbot.BR.gen!Eldorado
Avira TR/Kazy.MK
MAX malware (ai score=100)
Antiy-AVL Trojan[Spy]/Win32.Zbot
Kingsoft malware.kb.a.1000
Xcitium Malware@#22bjw6zhc3siw
Arcabit Trojan.Ransom.Natas.3
ViRobot Trojan.Win32.A.Zbot.135680.AW
ZoneAlarm HEUR:Trojan.Win32.Generic
Microsoft PWS:Win32/Zbot!CI
Cynet Malicious (score: 100)
AhnLab-V3 Win-Trojan/Malpacked3.Gen
Acronis suspicious
ALYac Gen:Variant.Ransom.Natas.3
TACHYON Trojan-Spy/W32.ZBot.135680.BZ
VBA32 SScope.Trojan.FakeAV.01110
Cylance unsafe
Panda Trj/Genetic.gen
TrendMicro-HouseCall Cryp_Xin1
Rising Spyware.Zbot!1.648A (CLASSIC)
Yandex Trojan.GenAsa!gPxoCHHDNXw
Ikarus Trojan-Spy.Banker.Citadel
MaxSecure Trojan.Malware.7164915.susgen
Fortinet W32/Zbot.AAU!tr
AVG Sf:Crypt-BT [Trj]
Cybereason malicious.5ed27b
DeepInstinct MALICIOUS

How to remove Sf:Crypt-BT [Trj]?

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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