Categories: Trojan

TrojanDownloader:Win32/Dofoil.AB removal tips

The TrojanDownloader:Win32/Dofoil.AB 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.AB virus can do?

  • Behavioural detection: Executable code extraction – unpacking
  • Yara rule detections observed from a process memory dump/dropped files/CAPE
  • Creates RWX memory
  • Dynamic (imported) function loading detected
  • Enumerates running processes
  • Repeatedly searches for a not-found process, may want to run with startbrowser=1 option
  • CAPE extracted potentially suspicious content
  • The binary likely contains encrypted or compressed data.
  • Authenticode signature is invalid
  • Detects Sandboxie through the presence of a library
  • Behavioural detection: Injection (Process Hollowing)
  • Executed a process and injected code into it, probably while unpacking
  • Behavioural detection: Injection (inter-process)
  • Explorer.exe process established HTTP connections
  • Checks the presence of disk drives in the registry, possibly for anti-virtualization
  • Anomalous binary characteristics

How to determine TrojanDownloader:Win32/Dofoil.AB?


File Info:

name: 165A3CA4593DFCAC1002.mlwpath: /opt/CAPEv2/storage/binaries/ef0054e9ec2e62dfbdc671967abbd7043b7cd2be77712609d4173de3d8cf859fcrc32: 16E418E7md5: 165a3ca4593dfcac1002bffd6ba9ffacsha1: 0dc8d04984dea68eccae236ab8cb7a1ac288ac9fsha256: ef0054e9ec2e62dfbdc671967abbd7043b7cd2be77712609d4173de3d8cf859fsha512: cde0608faf746452f570340ac1f1caaad32f9c941d04bc454852b9ee2ba23cdfb8a9c6dae0d90bedf795cdf65799b35916edb36ad380d1620fb35f1a2902619bssdeep: 192:oMBRcrByA/el37nZH6ThbzdyYmQ1gy1MzcnZodT0GplfbBor6/fFv:0ByA/e57ZaTaug9uOpJi0type: PE32 executable (GUI) Intel 80386, for MS Windowstlsh: T19CD3B08433AC6ADEFE7D673ECE216C0067472116087E5E4D1B30429F25899C67270577sha3_384: 530b431a3db3f0a34793da4a400a9722fb0658476899ccb4f3eccf3d392aa30d9b963cacb04641d4438819913cec8742ep_bytes: 5589e5eb073b05801440007d683499b0timestamp: 2018-02-21 14:53:11

Version Info:

0: [No Data]

TrojanDownloader:Win32/Dofoil.AB also known as:

Bkav W32.AIDetect.malware1
tehtris Generic.Malware
MicroWorld-eScan Gen:Variant.Razy.537868
Cylance Unsafe
Sangfor PUP.Win32.Razy.537868
K7AntiVirus Trojan ( 00536d121 )
K7GW Trojan ( 00536d121 )
Cybereason malicious.4593df
Cyren W32/Agent.CC.gen!Eldorado
Symantec ML.Attribute.HighConfidence
Elastic malicious (high confidence)
ESET-NOD32 Win32/Smokeloader.A
APEX Malicious
ClamAV Win.Dropper.TrickBot-7474974-0
Kaspersky Backdoor.Win32.Androm.tgwv
BitDefender Gen:Variant.Razy.537868
NANO-Antivirus Virus.Win32.Gen-Crypt.ccnc
Avast Win32:Malware-gen
Tencent Win32.Backdoor.Androm.Dxdi
Ad-Aware Gen:Variant.Razy.537868
Emsisoft Gen:Variant.Razy.537868 (B)
DrWeb Trojan.MulDrop7.51873
Zillya Trojan.Generic.Win32.896737
McAfee-GW-Edition GenericRXDZ-IL!D2D04E619E8E
FireEye Generic.mg.165a3ca4593dfcac
Sophos Mal/Generic-S
SentinelOne Static AI – Malicious PE
GData Gen:Variant.Razy.537868
Jiangmin Trojan.Generic.bzwfe
Avira TR/Crypt.XPACK.Gen
Arcabit Trojan.Razy.D8350C
Microsoft TrojanDownloader:Win32/Dofoil.AB
Cynet Malicious (score: 100)
AhnLab-V3 Trojan/Win32.Generic.C2415598
Acronis suspicious
McAfee Artemis!165A3CA4593D
MAX malware (ai score=80)
VBA32 BScope.Trojan.Downloader
Rising Downloader.Zurgop!8.4BB (C64:YzY0OgQHhXzf/5BDIQ)
Yandex Trojan.Agent!uNJhlqbpt8I
Ikarus Trojan-Downloader.Win32.Dofoil
Fortinet W32/Zurgop.CO!tr
BitDefenderTheta AI:Packer.4E4E32781E
AVG Win32:Malware-gen
CrowdStrike win/malicious_confidence_100% (W)

How to remove TrojanDownloader:Win32/Dofoil.AB?

  • 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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