What is the Win32:Evo-gen [Trj] virus?
Written by Robert Bailey
Spectating the Win32/Delf.TKR malware detection usually means that your system is in big danger. This malware can correctly be named as ransomware – virus which ciphers your files and asks you to pay for their decryption. Stopping it requires some unusual steps that must be taken as soon as possible.
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Win32/Delf.TKR detection is a virus detection you can spectate in your computer. It frequently appears after the provoking activities on your PC – opening the untrustworthy e-mail messages, clicking the banner in the Internet or installing the program from dubious resources. From the second it shows up, you have a short time to take action before it starts its destructive activity. And be sure – it is much better not to wait for these destructive things.

What is Win32/Delf.TKR virus?

Win32/Delf.TKR is ransomware-type malware. It looks for the files on your disk, encrypts it, and then asks you to pay the ransom for receiving the decryption key. Besides making your files inaccessible, this malware additionally does a ton of harm to your system. It modifies the networking setups in order to stop you from looking for the elimination guidelines or downloading the antivirus. In some cases, Win32/Delf.TKR can additionally stop the setup of anti-malware programs.

Win32/Delf.TKR Summary

Summarizingly, Win32/Delf.TKR virus activities in the infected system are next:

  • Behavioural detection: Executable code extraction – unpacking;
  • Attempts to connect to a dead IP:Port (3 unique times);
  • Yara rule detections observed from a process memory dump/dropped files/CAPE;
  • Creates RWX memory;
  • Anomalous file deletion behavior detected (10+);
  • Guard pages use detected – possible anti-debugging.;
  • A process attempted to delay the analysis task.;
  • Dynamic (imported) function loading detected;
  • Performs HTTP requests potentially not found in PCAP.;
  • CAPE extracted potentially suspicious content;
  • Unconventionial language used in binary resources: Russian;
  • The binary contains an unknown PE section name indicative of packing;
  • The binary likely contains encrypted or compressed data.;
  • The executable is compressed using UPX;
  • Authenticode signature is invalid;
  • Sniffs keystrokes;
  • Installs itself for autorun at Windows startup;
  • Attempts to modify proxy settings;
  • Harvests cookies for information gathering;
  • Ciphering the documents kept on the target’s disks — so the victim cannot open these files;
  • Blocking the launching of .exe files of anti-virus programs
  • Blocking the launching of installation files of security tools

Ransomware has actually been a nightmare for the last 4 years. It is hard to picture a more harmful malware for both individuals and corporations. The algorithms used in Win32/Delf.TKR (typically, 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 without delay – it can take up to several hours to cipher all of your files. Thus, seeing the Win32/Delf.TKR detection is a clear signal that you should start the elimination procedure.

Where did I get the Win32/Delf.TKR?

Typical ways of Win32/Delf.TKR distribution are basic for all other ransomware examples. Those are one-day landing sites where users are offered to download and install the free app, so-called bait e-mails and hacktools. Bait emails are a relatively modern tactic in malware distribution – you receive the e-mail that simulates some regular notifications about shippings or bank service conditions shifts. Within the e-mail, there is a corrupted MS Office file, or a 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 fairly easy, but still demands a lot of attention. Malware can hide in different spots, and it is better to prevent it even before it goes into your computer than to depend on an anti-malware program. Essential cybersecurity awareness is just an important thing in the modern world, even if your interaction with a PC remains on YouTube videos. That can save you a great deal of time and money which you would spend while searching for a solution.

Win32/Delf.TKR malware technical details

File Info:

name: 597E066C47E814A15E38.mlw
path: /opt/CAPEv2/storage/binaries/8e4b01a30f0b531f0b8c0cc7ba64f24e76e30eb80cae5b0f3b960b5e8e3b3846
crc32: 6BF9E429
md5: 597e066c47e814a15e383edb4b70de74
sha1: 978f055adb922748beac7901fa45e4008ba1359f
sha256: 8e4b01a30f0b531f0b8c0cc7ba64f24e76e30eb80cae5b0f3b960b5e8e3b3846
sha512: ebafb11c0c01b3383c9ac0a81444c6c68b5188f9b9a57fbbb323b6a2df135f1aab76f0c4768c7f0d3843624852e457350990f04dd15b9cffa12b2674b8c9a792
ssdeep: 12288:1mOnsALQzBubq5eJgSAuI5kQbFuP1keN:1mOnsTBu6EI5xeN
type: PE32 executable (GUI) Intel 80386, for MS Windows
tlsh: T11A84232A4849193BC1D6DCB55E29624BACE2F30C74D170EA211877AF21BFD1BE6943C7
sha3_384: 4836f498ccc3ae4e4e7778addf54b9259c345eab1afad365bd3d44b584de76079c66a07da3bc8fdcdc3d03211e96ab71
ep_bytes: 60be00004c008dbe0010f4ff5783cdff
timestamp: 2005-02-13 06:33:15

Version Info:

CompanyName: КзйъъиОлЩБлндКкяЮехлЪН
FileDescription: ГУМЛСКыгШИкщлуЛЕИююнсы
InternalName: ФРЪАЫЪШФПиГыВщущннявэлАз
LegalCopyright: 7813-9250
OriginalFilename: yXmkD.exe
ProductName: бУыДнЪЖвКЫДРшадсхВЖпНУ
Translation: 0x04b0 0x0417

Win32/Delf.TKR also known as:

Bkav W32.AIDetect.malware2
Lionic Trojan.Win32.Delf.m!c
Elastic malicious (high confidence)
MicroWorld-eScan Gen:Variant.Ransom.4
McAfee Artemis!597E066C47E8
Cylance Unsafe
K7AntiVirus Trojan ( 0055e3e61 )
Alibaba Backdoor:Win32/Wombot.d75b3a93
K7GW Trojan ( 0055e3e61 )
Cybereason malicious.c47e81
BitDefenderTheta AI:Packer.3CBF3D651F
VirIT Backdoor.Win32.Delf.VCK
Cyren W32/Backdoor.SBBB-3241
Symantec Trojan.Gen
ESET-NOD32 Win32/Delf.TKR
APEX Malicious
ClamAV Win.Spyware.Zbot-1282
BitDefender Gen:Variant.Ransom.4
NANO-Antivirus Trojan.Win32.Krap.cgfic
Avast Win32:Trojan-gen
Tencent Win32.Packed.Krap.Swve
Ad-Aware Gen:Variant.Ransom.4
Emsisoft Gen:Variant.Ransom.4 (B)
Comodo MalCrypt.Indus!@1qrzi1
DrWeb Trojan.Packed.20343
VIPRE Trojan.Win32.Nedsym.f (v)
McAfee-GW-Edition BehavesLike.Win32.Downloader.fc
Sophos Mal/Generic-R + Mal/Qbot-B
SentinelOne Static AI – Malicious PE
GData Gen:Variant.Ransom.4
Jiangmin Packed.Krap.dcye
Webroot W32.Trojan.Trojan-Backdoor.Gen.
Avira TR/Crypt.XPACK.Gen
Antiy-AVL Trojan/Generic.ASMalwS.18A4E59
ViRobot Backdoor.Win32.Delf.402944
Microsoft Backdoor:Win32/Wombot.A
Cynet Malicious (score: 100)
AhnLab-V3 Malware/Win.Generic.C4399132
VBA32 BScope.Trojan.Packed
ALYac Gen:Variant.Ransom.4
MAX malware (ai score=100)
TrendMicro-HouseCall BKDR_DELF.PDY
Rising Backdoor.Wombot!8.553B (CLOUD)
Yandex Trojan.GenAsa!BI6sz/5beoU
Ikarus Trojan-Spy.Win32.Zbot
eGambit Unsafe.AI_Score_100%
Fortinet W32/Delf.B!tr.bdr
AVG Win32:Trojan-gen
Panda Trj/Krapack.gen
CrowdStrike win/malicious_confidence_70% (D)
MaxSecure Trojan.Malware.1331700.susgen

How to remove Win32/Delf.TKR?

Win32/Delf.TKR malware is very hard to erase by hand. It puts its data in a variety of places throughout the disk, and can recover itself from one of the elements. Furthermore, various alterations in the registry, networking setups and also Group Policies are fairly hard to find and revert to the initial. It is far better to utilize a special app – exactly, an anti-malware tool. GridinSoft Anti-Malware will definitely fit the best for malware elimination reasons.

Why GridinSoft Anti-Malware? It is pretty lightweight and has its databases updated almost every hour. In addition, it does not have such problems and weakness as Microsoft Defender does. The combination of these details makes GridinSoft Anti-Malware perfect for removing malware of any type.

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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