How to remove "PUA:Win32/Sien"?

The PUA:Win32/Sien 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 PUA:Win32/Sien virus can do?

Attempts to connect to a dead IP:Port (4 unique times)
Presents an Authenticode digital signature
Reads data out of its own binary image
Performs some HTTP requests
Anomalous binary characteristics

Related domains:

geoloc.1stbrowser.com

data.bd-pl.com

setup2.1stbrowser.com

nist.time.gov

How to determine PUA:Win32/Sien?


File Info:
crc32: DB2F4D5F
md5: 45a7edf7c99c84ec3a9939ebc7361c32
name: 45A7EDF7C99C84EC3A9939EBC7361C32.mlw
sha1: c41d59087e9425d0362b41268eb903e8e4921911
sha256: 42161047834607e84a3f13760defc17d705b33177bf0a061d87ed46fae7b5f88
sha512: 07b154ae1d40a2fd19b02be5f8878a292ac972fa40f3f229270fe45af493699520a7372588c28f164b30e1007c087fbca9836e2eb353df431637f8da2c302cef
ssdeep: 49152:L/88G8UiT24uGg2Brd/W7IL2RLpGDgzTvrjzAjnMKo:LlG8Z24hg2Brd3S1pGDgzTLb
type: PE32 executable (GUI) Intel 80386, for MS Windows

Version Info:
LegalCopyright: Copyright (C) 2016
InternalName: Installer.exe
FileVersion: 4.42.1.1
CompanyName: S
ProductName: Installer
ProductVersion: 4.42.1.1
FileDescription: Installer
OriginalFilename: Installer.exe
Translation: 0x0409 0x04b0

PUA:Win32/Sien also known as:

Bkav	W32.AIDetectVM.malware1
Elastic	malicious (high confidence)
FireEye	Generic.mg.45a7edf7c99c84ec
McAfee	Artemis!45A7EDF7C99C
Cylance	Unsafe
Zillya	Adware.CognosAdsCRTD.Win32.7992
Sangfor	Malware
K7AntiVirus	Adware ( 004dc6491 )
K7GW	Adware ( 004dc6491 )
Invincea	Generic PUA ME (PUA)
Cyren	W32/Strictor.BK.gen!Eldorado
Symantec	ML.Attribute.HighConfidence
APEX	Malicious
ClamAV	Win.Trojan.Autoit-9790147-0
Kaspersky	not-a-virus:HEUR:AdWare.Win32.Generic
Emsisoft	Application.AdLoad (A)
DrWeb	Adware.Iminent.132
VIPRE	1stBrowser (fs)
McAfee-GW-Edition	Artemis!Trojan
Sophos	Generic PUA ME (PUA)
SentinelOne	Static AI – Suspicious PE
Jiangmin	AdWare.Generic.saak
Avira	ADWARE/CognosAds.Gen
eGambit	PE.Heur.InvalidSig
Antiy-AVL	GrayWare[AdWare]/Win32.CognosAds.gg
Gridinsoft	Adware.Iminent.vl!c
Microsoft	PUA:Win32/Sien
ZoneAlarm	not-a-virus:HEUR:AdWare.Win32.Generic
Cynet	Malicious (score: 90)
AhnLab-V3	PUP/Win32.CognosAds.R214870
VBA32	BScope.Adware.Shoppers
Malwarebytes	PUP.Optional.1stBrowser
ESET-NOD32	a variant of Win32/Adware.CognosAds.G
TrendMicro-HouseCall	TROJ_GEN.R06CH0CKI20
Rising	Trojan.Generic@ML.90 (RDML:tq0tJmXOGXscrx2dxHF5cg)
Ikarus	PUA.CognosAds
AVG	Win32:Adware-DLV [PUP]
CrowdStrike	win/malicious_confidence_100% (D)

How to remove PUA:Win32/Sien?

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.

How to remove “PUA:Win32/Sien”?