Categories: Trojan

How to remove “TrojanDownloader:Win32/Dofoil.U”?

The TrojanDownloader:Win32/Dofoil.U is considered dangerous by lots of security experts. When this infection is active, you may notice unwanted processes in Task Manager list. In this case, it is adviced to scan your computer with GridinSoft Anti-Malware.

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What TrojanDownloader:Win32/Dofoil.U virus can do?

  • 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

How to determine TrojanDownloader:Win32/Dofoil.U?


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)
Gridinsoft Ransom.Win32.Zbot.sa
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?

  • Download and install GridinSoft Anti-Malware.
  • Open GridinSoft Anti-Malware and perform a “Standard scan“.
  • Move to quarantine” all items.
  • Open “Tools” tab – Press “Reset Browser Settings“.
  • Select proper browser and options – Click “Reset”.
  • Restart your computer.
Paul Valéry

I'm a cyber security analyst and data science expert with 5+ years of experience with security software contractors.

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