Categories: Trojan

About “TrojanDropper:Win32/Delf.BL!MTB” infection

The TrojanDropper:Win32/Delf.BL!MTB 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 TrojanDropper:Win32/Delf.BL!MTB virus can do?

  • Executable code extraction
  • Creates RWX memory
  • Loads a driver
  • Starts servers listening on 0.0.0.0:54620
  • Expresses interest in specific running processes
  • Repeatedly searches for a not-found process, may want to run with startbrowser=1 option
  • Reads data out of its own binary image
  • Attempts to modify Internet Explorer’s start page
  • Drops a binary and executes it
  • HTTP traffic contains suspicious features which may be indicative of malware related traffic
  • Performs some HTTP requests
  • Unconventionial language used in binary resources: Chinese (Simplified)
  • The binary likely contains encrypted or compressed data.
  • The executable is likely packed with VMProtect
  • Tries to suspend Cuckoo threads to prevent logging of malicious activity
  • Creates or sets a registry key to a long series of bytes, possibly to store a binary or malware config
  • Installs itself for autorun at Windows startup
  • Likely virus infection of existing system binary
  • Creates a copy of itself
  • Creates a slightly modified copy of itself
  • Anomalous binary characteristics

Related domains:

z.whorecord.xyz
a.tomx.xyz
udo.jxwan.com
dld.jxwan.com
tj.jipinwan.com

How to determine TrojanDropper:Win32/Delf.BL!MTB?


File Info:

crc32: EBB84353md5: b2be623ecce45dc62db64cd3829e05e4name: client12766.exesha1: e840cb704e64990ff30bf3a5e3623399c9825e52sha256: 29f9e91611aaa4f4336ab043aa0e57a4faa76010aee7046be88179847ca78ef1sha512: c39a4fbf9deffb785993c0829119cba8b206a7163ffa00a5d9fb46d22d334498bd78ced506c0dbcac6c6877240b9e24b3c6a850ad30fc14b3748abd9fa9794d0ssdeep: 49152:mDutMLThZl0EHgj1eLcSPkaKBuOixMtRsrP:YLVZy78kasRixYRotype: PE32 executable (GUI) Intel 80386, for MS Windows

Version Info:

0: [No Data]

TrojanDropper:Win32/Delf.BL!MTB also known as:

Bkav HW32.Packed.
DrWeb Trojan.DownLoader26.56346
MicroWorld-eScan Gen:Variant.Symmi.87187
FireEye Generic.mg.b2be623ecce45dc6
McAfee Artemis!B2BE623ECCE4
Cylance Unsafe
VIPRE Trojan.Win32.Generic!BT
Sangfor Malware
K7AntiVirus Trojan ( 004f34121 )
BitDefender Gen:Variant.Symmi.87187
K7GW Trojan ( 004f34121 )
Cybereason malicious.ecce45
BitDefenderTheta Gen:NN.ZexaF.34130.4PW@aSZuqjhb
F-Prot W32/S-d7209103!Eldorado
Symantec ML.Attribute.HighConfidence
APEX Malicious
GData Gen:Variant.Symmi.87187
Kaspersky HEUR:Trojan.Win32.Generic
Alibaba Trojan:Win32/Generic.84f9bb5a
NANO-Antivirus Trojan.Win32.Delf.fhcbja
AegisLab Trojan.Win32.Generic.4!c
Rising Trojan.Delf!8.67 (CLOUD)
Endgame malicious (high confidence)
Sophos Mal/Generic-S
Comodo Malware@#32nadvmzui6iw
F-Secure Heuristic.HEUR/AGEN.1103189
Zillya Trojan.Generic.Win32.454621
Invincea heuristic
Trapmine malicious.high.ml.score
Emsisoft Gen:Variant.Symmi.87187 (B)
Ikarus Trojan.Win32.Regrun
Cyren W32/S-d7209103!Eldorado
Jiangmin Trojan.Generic.couxw
MaxSecure Trojan.Malware.7164915.susgen
Avira HEUR/AGEN.1103189
MAX malware (ai score=100)
Antiy-AVL Trojan/Win32.AGeneric
Microsoft TrojanDropper:Win32/Delf.BL!MTB
Arcabit Trojan.Symmi.D15493
ZoneAlarm HEUR:Trojan.Win32.Generic
Cynet Malicious (score: 100)
AhnLab-V3 Malware/Win32.RL_Generic.R266755
Acronis suspicious
VBA32 BScope.Trojan.Downloader
ALYac Gen:Variant.Symmi.87187
Ad-Aware Gen:Variant.Symmi.87187
Panda Trj/GdSda.A
ESET-NOD32 a variant of Win32/Delf.UEQ
Tencent Win32.Trojan.Generic.Pfji
Yandex Trojan.Agent!1hgwfa1v3FM
SentinelOne DFI – Suspicious PE
eGambit Unsafe.AI_Score_100%
Fortinet W32/Delf.TJJ!tr
AVG FileRepMetagen [Malware]
Paloalto generic.ml
CrowdStrike win/malicious_confidence_100% (W)
Qihoo-360 Generic/HEUR/QVM16.0.0288.Malware.Gen

How to remove TrojanDropper:Win32/Delf.BL!MTB?

  • 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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