Categories: Trojan

Should I remove “Trojan:Win32/Delf.II”?

The Trojan:Win32/Delf.II 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 Trojan:Win32/Delf.II virus can do?

  • SetUnhandledExceptionFilter detected (possible anti-debug)
  • Scheduled file move on reboot detected
  • Yara rule detections observed from a process memory dump/dropped files/CAPE
  • Creates RWX memory
  • Dynamic (imported) function loading detected
  • Reads data out of its own binary image
  • A process created a hidden window
  • Unconventionial language used in binary resources: Chinese (Simplified)
  • The binary contains an unknown PE section name indicative of packing
  • Authenticode signature is invalid
  • Uses Windows utilities for basic functionality
  • Uses Windows utilities for basic functionality
  • Deletes its original binary from disk
  • Attempts to create or modify a Browser Helper Object
  • Anomalous binary characteristics

How to determine Trojan:Win32/Delf.II?


File Info:

name: 2552AF7A82BF1F912D21.mlwpath: /opt/CAPEv2/storage/binaries/5a6391ba6d24b365cb02161fbcc6a65924caac0e69acf0c83d8e2391f7f3c164crc32: 81C10CB1md5: 2552af7a82bf1f912d214f739c066e1esha1: 377076169b03b70c46bcaf3352478c17cec0d0d1sha256: 5a6391ba6d24b365cb02161fbcc6a65924caac0e69acf0c83d8e2391f7f3c164sha512: ce50522a7e189925a554fb7574e6e41cb8eb2112bdf512d495ee5e16b6b653115118991f37ec028e6324c068d5b0c9b65f325f566e9ff310edb02117806dbbf2ssdeep: 12288:DgCQgGKX5XJA389xUBAuLBFJNGpsMX/IPM+xOX/505xyMll0oYvO3r917ie:kCY8Xu3Go7BFJM/AM+xOXCGMgoYvOzTtype: PE32 executable (GUI) Intel 80386, for MS Windowstlsh: T116256E26F6E18437D1372E3CDD5B92A89C3ABE506E38684A3BE41D4C8F397417429397sha3_384: d5c25c607e2b0066f3e3a5f6762e5b64b9cba94847b91c4b829aaa29ca198b035e041b5348b4aa1dccee89c4cf2fc323ep_bytes: 558bec83c4f0535657b8989d4500e829timestamp: 1992-06-19 22:22:17

Version Info:

0: [No Data]

Trojan:Win32/Delf.II also known as:

Bkav W32.AIDetect.malware1
Lionic Trojan.Win32.StartPage.ldeu
Elastic malicious (high confidence)
DrWeb Trojan.StartPage.42071
MicroWorld-eScan Generic.Dlf.Startpage.3CA6151C
FireEye Generic.mg.2552af7a82bf1f91
McAfee Generic StartPage.ag
Cylance Unsafe
VIPRE Trojan.Win32.BHO.ja (v)
Sangfor Trojan.Win32.Save.a
CrowdStrike win/malicious_confidence_90% (W)
Alibaba Trojan:Win32/StartPage.6e813f6d
K7GW Trojan ( 7000000f1 )
K7AntiVirus Trojan ( 7000000f1 )
BitDefenderTheta AI:Packer.3F3FCBC01E
Cyren W32/StartPage.M.gen!Eldorado
Symantec ML.Attribute.HighConfidence
ESET-NOD32 Win32/StartPage.NRP
TrendMicro-HouseCall TROJ_STARTP.SMHB
Paloalto generic.ml
ClamAV Win.Trojan.Startpage-4845
Kaspersky HEUR:Trojan.Win32.Generic
BitDefender Generic.Dlf.Startpage.3CA6151C
NANO-Antivirus Trojan.Win32.StartPage.jwfce
Avast Win32:StartPage-ADH [Trj]
Tencent Malware.Win32.Gencirc.10b8fe18
Ad-Aware Generic.Dlf.Startpage.3CA6151C
Sophos Mal/Generic-S
Comodo TrojWare.Win32.Startpage.~NRP@1rmysw
Baidu Win32.Trojan.StartPage.af
Zillya Trojan.StartPage.Win32.7300
TrendMicro TROJ_STARTP.SMHB
McAfee-GW-Edition Generic StartPage.ag
Emsisoft Generic.Dlf.Startpage.3CA6151C (B)
Ikarus Trojan.Win32.StartPage
Jiangmin TrojanDropper.Zaslanetzh.p
eGambit Unsafe.AI_Score_99%
Avira TR/BHO.Gen
Antiy-AVL Trojan/Generic.ASMalwS.57DC
Gridinsoft Ransom.Win32.Gen.sa
Microsoft Trojan:Win32/Delf.II
GData Win32.Trojan.StartPage.D
Cynet Malicious (score: 100)
AhnLab-V3 Dropper/Win32.Zaslanetzh.R32286
VBA32 TScope.Trojan.Delf
ALYac Generic.Dlf.Startpage.3CA6151C
MAX malware (ai score=100)
Malwarebytes Malware.AI.3670781915
APEX Malicious
Rising Trojan.StartPage!1.C352 (CLASSIC)
Yandex Trojan.GenAsa!db6NnzuoDVQ
SentinelOne Static AI – Malicious PE
MaxSecure Trojan.Malware.300983.susgen
Fortinet W32/StartPage.NRP!tr
Webroot W32.Delf.Gen
AVG Win32:StartPage-ADH [Trj]
Panda Generic Malware

How to remove Trojan:Win32/Delf.II?

  • 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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