Categories: Trojan

VHO:Trojan.Win32.Delf removal guide

The VHO:Trojan.Win32.Delf 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 VHO:Trojan.Win32.Delf virus can do?

  • Yara rule detections observed from a process memory dump/dropped files/CAPE
  • Possible date expiration check, exits too soon after checking local time
  • Dynamic (imported) function loading detected
  • Performs HTTP requests potentially not found in PCAP.
  • Reads data out of its own binary image
  • A process created a hidden window
  • Drops a binary and executes it
  • The binary contains an unknown PE section name indicative of packing
  • Executable file is packed/obfuscated with MPRESS
  • Authenticode signature is invalid
  • Attempts to repeatedly call a single API many times in order to delay analysis time
  • Created a process from a suspicious location
  • Attempts to modify proxy settings

How to determine VHO:Trojan.Win32.Delf?


File Info:

name: A7E7845FD83E9E6C5C3A.mlwpath: /opt/CAPEv2/storage/binaries/989d27a482717a242cc7a1cae9f1ba99b7e4281a0383dfd2e833e8d13092e349crc32: 902BCF74md5: a7e7845fd83e9e6c5c3aaf0668dc2aaesha1: 77583989cd0c6793589f4e7d4883070b5bcdebdesha256: 989d27a482717a242cc7a1cae9f1ba99b7e4281a0383dfd2e833e8d13092e349sha512: f13a21b46db2116bd1ff3ac12d730f20b920e669759c8ea1d48430a4276fe7ea017fd633d72a0d1a31e63006aa353349f47afb51ae1aa5f48a50b90cff80dee0ssdeep: 96:kDsrX6tfMPFE+azj5fcfnp32CCRkrMsixm/gaVqBkRqKV/yEEh4e/WkHNKgMkX:kWu2F9EYpmaAsiE/SBjI/y1h4hg1type: PE32 executable (GUI) Intel 80386, for MS Windowstlsh: T1FFB2E8D43AC86B22E37B9E3195F54091BCB8B1213C1ADE0F5299438A1D737D1C674B67sha3_384: 8f19c8d777023ec2477d4151fc25ef57747fe172413f76310a6b77e1352dc260cd33cbdd832285f1df37288176c5c3a2ep_bytes: 558d6c248881ecd408000053565733dbtimestamp: 2014-01-27 12:19:18

Version Info:

0: [No Data]

VHO:Trojan.Win32.Delf also known as:

Bkav W32.AIDetect.malware1
MicroWorld-eScan Trojan.Ppatre.Gen.1
FireEye Generic.mg.a7e7845fd83e9e6c
CAT-QuickHeal Downloader.Upatre.27298
McAfee GenericRXRZ-CQ!A7E7845FD83E
Cylance Unsafe
Sangfor Trojan.Win32.Save.a
K7AntiVirus Trojan ( 0052964f1 )
K7GW Trojan-Downloader ( 004941701 )
Cybereason malicious.fd83e9
Cyren W32/Upatre.NG.gen!Eldorado
Symantec ML.Attribute.HighConfidence
Elastic malicious (high confidence)
ESET-NOD32 a variant of Win32/TrojanDownloader.Waski.B
APEX Malicious
Cynet Malicious (score: 100)
Kaspersky VHO:Trojan.Win32.Delf.gen
BitDefender Trojan.Ppatre.Gen.1
NANO-Antivirus Trojan.Win32.DownLoad3.frlegi
Avast Win32:Upatre-V [Trj]
Tencent Trojan.Win32.Delf.wa
Ad-Aware Trojan.Ppatre.Gen.1
Emsisoft Trojan.Ppatre.Gen.1 (B)
Comodo TrojWare.Win32.TrojanDownloader.Waski.BU@7nmtnf
DrWeb Trojan.DownLoad3.33424
Zillya Trojan.Waski.Win32.3906
TrendMicro TROJ_UPATRE.SM37
McAfee-GW-Edition BehavesLike.Win32.Generic.mz
Sophos ML/PE-A
SentinelOne Static AI – Malicious PE
Jiangmin TrojanSpy.Zbot.fois
Avira TR/Crypt.XPACK.Gen
Antiy-AVL Trojan/Generic.ASMalwS.35392A5
Microsoft Trojan:Win32/Zbot.VHO!MTB
GData Win32.Trojan.PSE.19GSOAU
AhnLab-V3 Trojan/Win.Upatre.R476095
Acronis suspicious
BitDefenderTheta Gen:NN.ZexaF.34606.bqX@aeybIUdi
ALYac Trojan.Ppatre.Gen.1
MAX malware (ai score=80)
VBA32 Trojan.Download
Malwarebytes Malware.AI.2840754179
TrendMicro-HouseCall TROJ_UPATRE.SM37
Rising Spyware.Zbot!8.16B (RDMK:cmRtazoF4BqdA/D/N1o)
Yandex Trojan.Delf!x3yOfYLFlis
Ikarus Packer.Win32.Krap
MaxSecure Trojan.Upatre.Gen
Fortinet W32/Waski.B!tr
AVG Win32:Upatre-V [Trj]
Panda Trj/Genetic.gen
CrowdStrike win/malicious_confidence_90% (D)

How to remove VHO:Trojan.Win32.Delf?

  • 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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