Categories: Malware

Win32:Delf-QTB [Trj] removal

The Win32:Delf-QTB [Trj] 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 Win32:Delf-QTB [Trj] virus can do?

  • Repeatedly searches for a not-found process, may want to run with startbrowser=1 option
  • Drops a binary and executes it
  • The binary likely contains encrypted or compressed data.
  • The executable is compressed using UPX
  • Uses Windows utilities for basic functionality
  • Attempts to delete volume shadow copies
  • Deletes its original binary from disk
  • Modifies boot configuration settings
  • Installs itself for autorun at Windows startup
  • Exhibits possible ransomware file modification behavior
  • Writes a potential ransom message to disk
  • Creates a hidden or system file
  • Network activity detected but not expressed in API logs
  • Likely virus infection of existing system binary
  • Detects Joe or Anubis Sandboxes through the presence of a file
  • Checks the presence of disk drives in the registry, possibly for anti-virtualization
  • Creates a copy of itself
  • Anomalous binary characteristics
  • Uses suspicious command line tools or Windows utilities

How to determine Win32:Delf-QTB [Trj]?


File Info:

crc32: AE153E8Dmd5: ff62b1056de03eadc8ad605d410569b7name: FF62B1056DE03EADC8AD605D410569B7.mlwsha1: 3f93845b173f728e5558de813ac56cf22bc95491sha256: c74dcecb4c30804e3aed285625c8920d88375a7cfd7bf1fcbaab8c5ce725aeccsha512: 43e6bf36eb337a9b6fb9256a638ad11e766d939294ceabc08fe5d11f8abd12b154a188fa9716cdeb226bc580f39945f329d1a6230c9eb14d45f20d4beab1d09assdeep: 1536:lNI6DnMCLosDz1OwVIBaVlKs24mD+dL9I4bU9hSHIJTx9Sp9xVZjro:XI6NLZ1OLNDWpI2U9koJT6pjVZXotype: PE32 executable (GUI) Intel 80386, for MS Windows, UPX compressed

Version Info:

0: [No Data]

Win32:Delf-QTB [Trj] also known as:

Bkav W32.AIDetect.malware1
K7AntiVirus Trojan ( 004f6e981 )
Lionic Trojan.Win32.Generic.j!c
Elastic malicious (high confidence)
DrWeb Trojan.Encoder.11464
Cynet Malicious (score: 100)
ALYac Trojan.Ransom.Amnesia.B
Cylance Unsafe
Zillya Trojan.Filecoder.Win32.5222
Sangfor Trojan.Win32.Save.a
CrowdStrike win/malicious_confidence_100% (W)
Alibaba Trojan:Win32/Filecoder.45b5bde2
K7GW Trojan ( 004f6e981 )
Cybereason malicious.56de03
Symantec ML.Attribute.HighConfidence
ESET-NOD32 a variant of Win32/Filecoder.FS
APEX Malicious
Avast Win32:Delf-QTB [Trj]
ClamAV Win.Ransomware.Scarab-6336012-1
Kaspersky HEUR:Trojan-Ransom.Win32.Generic
BitDefender Trojan.Ransom.Amnesia.B
NANO-Antivirus Trojan.Win32.Filecoder.eokqut
MicroWorld-eScan Trojan.Ransom.Amnesia.B
Tencent Win32.Trojan.Raas.Auto
Ad-Aware Trojan.Ransom.Amnesia.B
Sophos Mal/Generic-S
Comodo Malware@#xzddd1excyzq
BitDefenderTheta AI:Packer.6826D7AF1F
VIPRE Trojan.Win32.Generic!BT
TrendMicro Ransom_PURGE.F117EC
McAfee-GW-Edition BehavesLike.Win32.Mytob.nc
FireEye Generic.mg.ff62b1056de03ead
Emsisoft Trojan.Ransom.Amnesia.B (B)
SentinelOne Static AI – Malicious PE
Jiangmin Trojan.Generic.aydyq
Webroot W32.Ransom.Gen
Avira TR/Downloader.Gen
eGambit Unsafe.AI_Score_99%
Antiy-AVL Trojan/Generic.ASMalwS.1FF6E3D
Microsoft Worm:Win32/Skeeyah.A!rfn
Arcabit Trojan.Ransom.Amnesia.B
ZoneAlarm HEUR:Trojan-Ransom.Win32.Generic
GData Trojan.Ransom.Amnesia.B
AhnLab-V3 Trojan/Win32.CryptXXX.R208829
McAfee Artemis!FF62B1056DE0
MAX malware (ai score=100)
VBA32 BScope.TrojanRansom.Kitoles
Panda Trj/Ransom.M
TrendMicro-HouseCall Ransom_PURGE.F117EC
Yandex Trojan.GenAsa!naaCZ9xMLiA
Ikarus Trojan-Ransom.FileCrypter
MaxSecure Trojan.Malware.300983.susgen
Fortinet W32/Filecoder.FS!tr
AVG Win32:Delf-QTB [Trj]
Paloalto generic.ml
Qihoo-360 Win32/Ransom.Amnesia.HwsBEpsA

How to remove Win32:Delf-QTB [Trj]?

  • 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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