Categories: Malware

What is “Troj/DwnLdr-YLF”?

The Troj/DwnLdr-YLF 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 Troj/DwnLdr-YLF virus can do?

  • Sample contains Overlay data
  • The binary contains an unknown PE section name indicative of packing
  • Authenticode signature is invalid
  • Attempts to modify proxy settings
  • Yara rule detections observed from a process memory dump/dropped files/CAPE

How to determine Troj/DwnLdr-YLF?


File Info:

name: D3847F45B1FA1BCCC4CF.mlwpath: /opt/CAPEv2/storage/binaries/c3207e1a3f7d625bc8b856172e120cfa0475bf4a85aa1f799ba2b2b8a3095ac7crc32: 887483B1md5: d3847f45b1fa1bccc4cff9358e342954sha1: 084b27139f4ea19b5bd1cc86ccfd0e144b33152bsha256: c3207e1a3f7d625bc8b856172e120cfa0475bf4a85aa1f799ba2b2b8a3095ac7sha512: 29014ee26e25ac3b9f858546d4e4296d142be1ff30c6533ac5760c145ffe67d49fe4a65c0e2aa2eae41a96d81aff8b55559776fb724b573b16d50bfe67f9b3e2ssdeep: 12288:VLE8rKj25X0mcslMKTKK4KKDyK5FZ1EEEEmEEE1EEEEEEEEEEElKK1KKK1KKKaf/:VLEK42Gm52KTKK4KKDyK5FZ1EEEEmEEvtype: PE32 executable (GUI) Intel 80386, for MS Windowstlsh: T110C419253852D6E1FBD077B41694A6F0077FAC322E36E6EF52B032294B755D3C232866sha3_384: 5c5d6099ee00050c99f85aa632918a2ac5e3e6a29a4c014596bfdf162586dbdafffaf1f1406b8e0d4f4d35d8b45e1a75ep_bytes: 558bec81ec70090000e8b20c00008985timestamp: 1970-01-01 15:50:05

Version Info:

0: [No Data]

Troj/DwnLdr-YLF also known as:

Bkav W32.SmallzerotND.PE
Lionic Trojan.Win32.CliptoShuffler.tqXq
Cynet Malicious (score: 100)
FireEye Generic.mg.d3847f45b1fa1bcc
ALYac Trojan.Patched.LH
Malwarebytes Trojan.Downloader.RZ.Generic
Sangfor Downloader.Win32.Patched.Vw3f
K7AntiVirus Virus ( 0055485e1 )
Alibaba TrojanDownloader:Win32/SmallAgent.3e03b9ea
K7GW Trojan-Downloader ( 00552ecf1 )
Arcabit Trojan.Patched.LH
VirIT Win32.Nov15th.A
Cyren W32/ZeroDloader.A.gen!Eldorado
Symantec Infostealer
Elastic malicious (high confidence)
ESET-NOD32 Win32/TrojanDownloader.Agent.EQH
APEX Malicious
Kaspersky Trojan.Win32.Patched.rw
BitDefender Trojan.Patched.LH
NANO-Antivirus Virus.Win32.Gen.ccmw
MicroWorld-eScan Trojan.Patched.LH
Avast Win32:DeadZero [Inf]
Tencent Virus.Win32.Patched.kh
TACHYON Worm/W32.ZeroDownloader
Emsisoft Trojan.Patched.LH (B)
F-Secure Malware.W32/Infector.Gen
DrWeb Trojan.DownLoader33.36265
VIPRE Trojan.Patched.LH
TrendMicro TrojanSpy.Win32.FICKERSTEALER.SMTHA.hp
McAfee-GW-Edition BehavesLike.Win32.Simfect.hm
Trapmine malicious.high.ml.score
Sophos Troj/DwnLdr-YLF
Ikarus Trojan.Patched
Jiangmin TrojanDownloader.Generic.bdga
Avira W32/Infector.Gen
Antiy-AVL Trojan[Downloader]/Win32.Agent.a
Microsoft TrojanDownloader:Win32/SmallAgent!atmn
ZoneAlarm Trojan.Win32.Patched.rw
GData Win32.Trojan.PSE.1100EPL
Google Detected
AhnLab-V3 Malware/Win32.RL_Generic.R282625
McAfee Artemis!D3847F45B1FA
MAX malware (ai score=82)
VBA32 BScope.TrojanBanker.CliptoShuffler
Cylance unsafe
Panda Generic Suspicious
Zoner Trojan.Win32.133837
TrendMicro-HouseCall TrojanSpy.Win32.FICKERSTEALER.SMTHA.hp
Rising Worm.Phorpiex!1.BB1C (CLASSIC)
SentinelOne Static AI – Suspicious PE
MaxSecure Trojan.Malware.300983.susgen
Fortinet W32/Agent.EQH!tr
BitDefenderTheta Gen:NN.ZexaF.36722.HyY@a03GJMki
AVG Win32:DeadZero [Inf]
DeepInstinct MALICIOUS
CrowdStrike win/malicious_confidence_100% (W)

How to remove Troj/DwnLdr-YLF?

  • 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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