TrojanDownloader:Win32/Dofoil.U

Seeing the TrojanDownloader:Win32/Dofoil.U detection means that your system is in big danger. This computer virus can correctly be named as ransomware – sort of malware which encrypts your files and asks you to pay for their decryption. Stopping it requires some peculiar steps that must be done as soon as possible.

TrojanDownloader:Win32/Dofoil.U detection is a malware detection you can spectate in your computer. It generally shows up after the provoking actions on your computer – opening the dubious email, clicking the banner in the Web or mounting the program from suspicious sources. From the moment it shows up, you have a short time to act before it starts its harmful activity. And be sure – it is better not to wait for these harmful effects.

What is TrojanDownloader:Win32/Dofoil.U virus?

TrojanDownloader:Win32/Dofoil.U is ransomware-type malware. It searches for the files on your disks, ciphers it, and after that asks you to pay the ransom for getting the decryption key. Besides making your documents locked, this virus also does a lot of harm to your system. It alters the networking settings in order to prevent you from looking for the elimination manuals or downloading the antivirus. Sometimes, TrojanDownloader:Win32/Dofoil.U can additionally prevent the launching of anti-malware programs.

TrojanDownloader:Win32/Dofoil.U Summary

In total, TrojanDownloader:Win32/Dofoil.U virus activities in the infected computer are next:

  • SetUnhandledExceptionFilter detected (possible anti-debug);
  • Behavioural detection: Executable code extraction – unpacking;
  • 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;
  • Guard pages use detected – possible anti-debugging.;
  • Dynamic (imported) function loading detected;
  • Enumerates running processes;
  • Expresses interest in specific running processes;
  • Reads data out of its own binary image;
  • CAPE extracted potentially suspicious content;
  • Authenticode signature is invalid;
  • Behavioural detection: Injection (Process Hollowing);
  • Executed a process and injected code into it, probably while unpacking;
  • Detects Sandboxie through the presence of a library;
  • Code injection with CreateRemoteThread in a remote process;
  • Behavioural detection: Injection (inter-process);
  • Behavioural detection: Injection with CreateRemoteThread in a remote process;
  • Checks the presence of disk drives in the registry, possibly for anti-virtualization;
  • Ciphering the documents located on the victim’s disk 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 anti-malware apps

Ransomware has been a major problem for the last 4 years. It is challenging to realize a more damaging malware for both individual users and businesses. The algorithms used in TrojanDownloader:Win32/Dofoil.U (typically, 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 actually exists, and possibly will exist. However, that virus does not do all these horrible things instantly – it may require up to a few hours to cipher all of your files. Hence, seeing the TrojanDownloader:Win32/Dofoil.U detection is a clear signal that you should start the clearing process.

Where did I get the TrojanDownloader:Win32/Dofoil.U?

Usual tactics of TrojanDownloader:Win32/Dofoil.U distribution are basic for all other ransomware variants. Those are one-day landing sites where users are offered to download and install the free software, so-called bait e-mails and hacktools. Bait emails are a relatively new method in malware distribution – you get the email that imitates some regular notifications about shippings or bank service conditions shifts. Within the e-mail, 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.

Avoiding it looks pretty uncomplicated, however, still requires tons of awareness. Malware can hide in different spots, and it is better to stop it even before it gets into your system than to rely upon an anti-malware program. Essential cybersecurity awareness is just an essential item in the modern world, even if your relationship with a PC remains on YouTube videos. That may save you a great deal of money and time which you would certainly spend while looking for a fixing guide.

TrojanDownloader:Win32/Dofoil.U malware technical details

File Info:

name: D6704A162F576CF2CC17.mlwpath: /opt/CAPEv2/storage/binaries/cf6e4fce06fcbcc9b1f6351efa0befed4b6b3cbfb89605adf822c4688b97bf50crc32: 6443C0BBmd5: d6704a162f576cf2cc17850ca883ad7esha1: 74c89f0f285b85b94971190aa1a4a6949e9ec6bcsha256: cf6e4fce06fcbcc9b1f6351efa0befed4b6b3cbfb89605adf822c4688b97bf50sha512: c3d8c6491903d0734490405e8bcab02bcc29bc67ee81091f29dbcc1460a7f7c1efadb9c821ead24fd04565a95ce229c6e5c7709988e33224536f1bd39171d880ssdeep: 1536:0aRdLiaUpk8TTdF3vn/5efi5dmngkQXG9yseMTO/NTEtb/EsegQnQBm2:0aRYaEkwcKX0HLSNTEtbkNQBtype: PE32 executable (GUI) Intel 80386, for MS Windowstlsh: T19FA36B1AB644F031F82936B3403857E7566DB8222B33968FBF1917E4AA723D45F70362sha3_384: 17f79a16879bb19af7f2ee4001cf2939adf82a708b3fdb0d6029cae349f0aff473d0e8731366c25a813360b769046b3fep_bytes: e872370000e989feffffb898db4000c3timestamp: 2013-01-23 06:58:16

Version Info:

0: [No Data]

TrojanDownloader:Win32/Dofoil.U also known as:

Lionic Trojan.Win32.Generic.4!c
Elastic malicious (high confidence)
MicroWorld-eScan Trojan.Generic.KDZ.5246
FireEye Generic.mg.d6704a162f576cf2
CAT-QuickHeal TrojanRansom.Crowti.A4
McAfee PWS-Zbot-FAJZ!
Cylance Unsafe
VIPRE Trojan-PWS.Win32.Zbot.asv (v)
Sangfor Trojan.Win32.Bulta.8
Alibaba Trojan:Win32/Injector.ff5b7356
CrowdStrike win/malicious_confidence_90% (W)
Arcabit Trojan.Generic.KDZ.D147E
BitDefenderTheta Gen:NN.ZexaF.34212.guW@amWo9oci
Cyren W32/Dorkbot.T.gen!Eldorado
Symantec Trojan.Zbot!gen44
ESET-NOD32 a variant of Win32/Injector.AINT
TrendMicro-HouseCall TROJ_SPNR.14BB13
Paloalto generic.ml
Cynet Malicious (score: 100)
Kaspersky HEUR:Trojan.Win32.Generic
BitDefender Trojan.Generic.KDZ.5246
NANO-Antivirus Virus.Win32.Gen-Crypt.ccnc
Avast Win32:Malware-gen
Tencent Win32.Trojan.Generic.Wrga
Ad-Aware Trojan.Generic.KDZ.5246
Sophos Mal/Generic-R + Mal/EncPk-AGD
Comodo TrojWare.Win32.Kryptik.ASVV@4tisde
Zillya Trojan.Injector.Win32.660487
TrendMicro TROJ_SPNR.14BB13
McAfee-GW-Edition PWS-Zbot-FAJZ!D6704A162F57
Emsisoft Trojan.Generic.KDZ.5246 (B)
Ikarus Trojan-Ransom.Foreign
Jiangmin Trojan/Generic.avfac
Webroot W32.Malware.Gen
Avira TR/Crypt.XPACK.Gen8
MAX malware (ai score=99)
Antiy-AVL Trojan/Win32.Unknown
Kingsoft Win32.Troj.Undef.(kcloud)
Microsoft TrojanDownloader:Win32/Dofoil.U
ZoneAlarm HEUR:Trojan.Win32.Generic
GData Trojan.Generic.KDZ.5246
AhnLab-V3 Spyware/Win32.Zbot.R51133
Acronis suspicious
VBA32 BScope.Malware-Cryptor.Oop
ALYac Trojan.Generic.KDZ.5246
Malwarebytes Malware.AI.2631993417
APEX Malicious
Rising Downloader.Dofoil!8.322 (CLOUD)
SentinelOne Static AI – Suspicious PE
eGambit Generic.Malware
Fortinet W32/Injector.ZVR!tr
AVG Win32:Malware-gen
Cybereason malicious.62f576
Panda Generic Malware
MaxSecure Trojan.Malware.7164915.susgen

How to remove TrojanDownloader:Win32/Dofoil.U?

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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