Categories: Backdoor

Backdoor:Win32/Delf.DB information

The Backdoor:Win32/Delf.DB 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 Backdoor:Win32/Delf.DB virus can do?

  • Scheduled file move on reboot detected
  • Creates RWX memory
  • Dynamic (imported) function loading detected
  • Starts servers listening on 0.0.0.0:13401, 0.0.0.0:6677
  • Reads data out of its own binary image
  • Unconventionial binary language: Russian
  • Unconventionial language used in binary resources: Russian
  • The binary contains an unknown PE section name indicative of packing
  • Authenticode signature is invalid
  • Installs itself for autorun at Windows startup
  • Creates a copy of itself

How to determine Backdoor:Win32/Delf.DB?


File Info:

name: 5CFC6BA90098CF26DC15.mlwpath: /opt/CAPEv2/storage/binaries/af225c3e8f90e3d24600a523d236f85e8cf774877a822e7655d97b14b81d7b82crc32: 6CF86060md5: 5cfc6ba90098cf26dc15f51c67164e6bsha1: c6be82eb1895452e2095cf1eaaa057bf1330c7ccsha256: af225c3e8f90e3d24600a523d236f85e8cf774877a822e7655d97b14b81d7b82sha512: 4cb8a75db1478c4a12264c4529975207f7659c3827e0fb27aefd5ddaf8dafd21167a095d59903e85f6044cedf97df87ba3f93fcfc0fdb78d4b8b850781511d06ssdeep: 24576:KsAZNKdA8xcTPN/5+qSbgl6KIyCLdufaK:KsAZ2QYZtype: PE32 executable (GUI) Intel 80386, for MS Windowstlsh: T1BCF47C22F6514837C16316789C9B57B99C3ABF112F28A94767F92D1C0E7A6C03D392F2sha3_384: a0bfd13fa3c6da04277c634e413597a0b5cfcdda32546b9dc784d47b160dd8d36950af1e8b41faded9297d53b82082f2ep_bytes: 558bec83c4f4b858a84900e818c0f6fftimestamp: 1992-06-19 22:22:17

Version Info:

CompanyName: MicrosoftFileDescription: Exception manager for Win32FileVersion: 1.0.0.0InternalName: WinallapLegalCopyright: MSLegalTrademarks: MS Windows 9*OriginalFilename: winallapProductName: Exception manager for Win32ProductVersion: 1.0.0.0Comments: Recomended to run on Pentium II SystemSpecialBuild: YesTranslation: 0x0419 0x04e3

Backdoor:Win32/Delf.DB also known as:

Lionic Trojan.Multi.Generic.4!c
Elastic malicious (high confidence)
DrWeb BackDoor.Winalap
MicroWorld-eScan Gen:Trojan.Backdoor2.WG0@aqjpxKbc
FireEye Gen:Trojan.Backdoor2.WG0@aqjpxKbc
McAfee Generic BackDoor.d
Cylance Unsafe
VIPRE Trojan.Win32.Generic!BT
Sangfor Trojan.Win32.Generic.ky
K7AntiVirus Trojan ( 7000000f1 )
Alibaba Backdoor:Win32/Generic.30ce43b9
K7GW Trojan ( 7000000f1 )
CrowdStrike win/malicious_confidence_100% (W)
BitDefenderTheta AI:Packer.4F1B77381C
Cyren W32/Backdoor.NZTJ-4397
Symantec ML.Attribute.HighConfidence
ESET-NOD32 Win32/Delf.DB
TrendMicro-HouseCall BKDR_DELF.DB
Paloalto generic.ml
Kaspersky HEUR:Trojan.Win32.Generic
BitDefender Gen:Trojan.Backdoor2.WG0@aqjpxKbc
NANO-Antivirus Trojan.Win32.Delf.fffg
Avast Win32:Trojan-gen
Tencent Trojan.Win32.BitCoinMiner.la
Ad-Aware Gen:Trojan.Backdoor2.WG0@aqjpxKbc
Sophos Mal/Generic-R + Troj/Delf-DB
Comodo Backdoor.Win32.Delf.DB@tb6
Zillya Backdoor.Delf.Win32.2208
TrendMicro BKDR_DELF.DB
McAfee-GW-Edition BehavesLike.Win32.AdwareIMonster.bh
CMC Generic.Win32.5cfc6ba900!MD
Emsisoft Gen:Trojan.Backdoor2.WG0@aqjpxKbc (B)
GData Gen:Trojan.Backdoor2.WG0@aqjpxKbc
Jiangmin Backdoor/Winallap
eGambit Generic.Backdoor
Avira BDS/Backdoor.Gen2
MAX malware (ai score=100)
Antiy-AVL Trojan/Generic.ASMalwS.1B6336
Kingsoft Win32.Hack.Delf.db.(kcloud)
Arcabit Trojan.Backdoor2.EB5DD6
ViRobot Backdoor.Win32.Delf.789504
Microsoft Backdoor:Win32/Delf.DB
Cynet Malicious (score: 99)
VBA32 Backdoor.Delf
ALYac Gen:Trojan.Backdoor2.WG0@aqjpxKbc
APEX Malicious
Rising Trojan.Delf.db (CLASSIC)
Yandex Backdoor.Delf!6Z7RQMiZJ6E
Ikarus Trojan.Win32.Delf
MaxSecure Trojan.Malware.1839308.susgen
Fortinet W32/Delf.DB!tr.bdr
Webroot W32.Trojan.Trojan-Backdoor.Gen.
AVG Win32:Trojan-gen
Cybereason malicious.90098c
Panda Bck/Delf.db

How to remove Backdoor:Win32/Delf.DB?

  • 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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