Backdoor

About “Backdoor:Win32/Fynloski.M” infection

Malware Removal

The Backdoor:Win32/Fynloski.M 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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Removing PC viruses manually may take hours and may damage your PC in the process. We recommend using GridinSoft Anti-Malware for virus removal. Allows to complete scan and cure your PC during the trial period.
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What Backdoor:Win32/Fynloski.M virus can do?

  • Executable code extraction
  • Injection (inter-process)
  • Injection (Process Hollowing)
  • Attempts to connect to a dead IP:Port (3 unique times)
  • Creates RWX memory
  • Possible date expiration check, exits too soon after checking local time
  • A process attempted to delay the analysis task.
  • Drops a binary and executes it
  • Performs some HTTP requests
  • Executed a process and injected code into it, probably while unpacking
  • Sniffs keystrokes
  • Creates a hidden or system file
  • Attempts to modify proxy settings
  • Creates a copy of itself
  • Interacts with known DarkComet registry keys

Related domains:

z.whorecord.xyz
a.tomx.xyz
imean333.zapto.org
dl.dropbox.com
ocsp.digicert.com

How to determine Backdoor:Win32/Fynloski.M?


File Info:

crc32: 76BA1049
md5: cf5dbc0790d50bbad286943bf36663fa
name: CF5DBC0790D50BBAD286943BF36663FA.mlw
sha1: af4c0d018b97642c636e5c171e7d18b21da8f866
sha256: 4880b4ab671fc4dea8a8c9bc56dd97be9210ac4fd13b89769370963c1538d8b6
sha512: ceb479942dfe9a50c32391645dd708f1fb6de485a5d07428926ed98612651d007b7c8a939e3e6c57c8957b67d618f66c7e29b2e0fc46975435d0e306b77707ad
ssdeep: 12288:fIxLtO4os1P3Eme62ybrdhZtQ7lq3g63gUiQVmCsJ4uIDtKpYa6LIWPY:wBtDVP3EB6PTZtl3vbYisY8WP
type: PE32 executable (GUI) Intel 80386 Mono/.Net assembly, for MS Windows

Version Info:

Translation: 0x0000 0x04b0
LegalCopyright: Tonec Inc., Copyright xa9 1999 - 2013
Assembly Version: 6.15.0.2
InternalName: Asif.exe
FileVersion: 6.15.0.2
CompanyName: Tonec Inc.
LegalTrademarks: Internet Download Manager
Comments: Internet Download Manager (IDM)
ProductName: Internet Download Manager (IDM)
ProductVersion: 6.15.0.2
FileDescription: Internet Download Manager
OriginalFilename: Asif.exe

Backdoor:Win32/Fynloski.M also known as:

K7AntiVirusTrojan ( 700000121 )
Elasticmalicious (high confidence)
DrWebTrojan.DownLoader5.59917
CynetMalicious (score: 100)
ALYacGen:Heur.MSIL.Androm.9
CylanceUnsafe
ZillyaTrojan.Blocker.Win32.37508
SangforTrojan.Win32.Save.a
CrowdStrikewin/malicious_confidence_100% (D)
K7GWTrojan ( 700000121 )
Cybereasonmalicious.790d50
SymantecML.Attribute.HighConfidence
ESET-NOD32a variant of MSIL/Injector.BKI
APEXMalicious
AvastMSIL:Crypt-MI [Trj]
KasperskyTrojan-Ransom.Win32.Blocker.jljw
BitDefenderGen:Heur.MSIL.Androm.9
NANO-AntivirusTrojan.Win32.Blocker.dcivku
MicroWorld-eScanGen:Heur.MSIL.Androm.9
TencentWin32.Trojan.Blocker.Tayv
Ad-AwareGen:Heur.MSIL.Androm.9
SophosMal/Generic-S
ComodoMalware@#2eyebzxvdy0yf
BitDefenderThetaGen:NN.ZemsilF.34686.Pm0@a0JPscg
VIPRETrojan.Win32.Generic!BT
McAfee-GW-EditionBehavesLike.Win32.Fareit.jh
FireEyeGeneric.mg.cf5dbc0790d50bba
EmsisoftGen:Heur.MSIL.Androm.9 (B)
SentinelOneStatic AI – Malicious PE
JiangminTrojan/Blocker.ede
AviraHEUR/AGEN.1127714
eGambitUnsafe.AI_Score_100%
MicrosoftBackdoor:Win32/Fynloski.M
ArcabitTrojan.MSIL.Androm.9
AegisLabTrojan.Win32.Blocker.j!c
GDataGen:Heur.MSIL.Androm.9
AhnLab-V3Trojan/Win32.RL_Blocker.C4016367
McAfeeGenericRXJU-YN!CF5DBC0790D5
MAXmalware (ai score=81)
VBA32TrojanRansom.Blocker
PandaTrj/CI.A
RisingRansom.Blocker!8.12A (CLOUD)
YandexTrojan.Blocker!0HBMtzbPdaY
IkarusTrojan-Ransom.Blocker
FortinetMSIL/Generic.DN.114B5F!tr
AVGMSIL:Crypt-MI [Trj]
Paloaltogeneric.ml

How to remove Backdoor:Win32/Fynloski.M?

Backdoor:Win32/Fynloski.M removal tool
  • 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.

About the author

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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