Categories: Backdoor

Backdoor.Staser removal instruction

The Backdoor.Staser 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.

Gridinsoft Anti-Malware

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.
6-day free trial available.

What Backdoor.Staser virus can do?

  • Reads data out of its own binary image
  • Drops a binary and executes it
  • Unconventionial binary language: Chinese (Simplified)
  • Unconventionial language used in binary resources: Chinese (Simplified)
  • Sniffs keystrokes
  • Attempts to repeatedly call a single API many times in order to delay analysis time
  • Installs itself for autorun at Windows startup
  • Creates a copy of itself
  • Anomalous binary characteristics

Related domains:

z.whorecord.xyz
ava.ctf.pub
a.tomx.xyz

How to determine Backdoor.Staser?


File Info:

crc32: 5BA65DAAmd5: fac18219e1677269c3c3d8f56c955f06name: 8085.exesha1: 028030984a6ab026c929d8f25a219a7ecca519a4sha256: c3eb257895a819eab0a0edcbf119ae920d11e8cfb4de302b8f59799e133d31aasha512: 3ff726da40fe5f08dde36ea5b193cd709417f6b6f1215c8156da95463903d12f26d8d7805e3c52830155f3f1e243476d67f740e00f9e01bc07d55a6de4a929aassdeep: 3072:PmZBWwd86YpyFnpdp/xVRXEgoY8fv/fNbJzZ7EBMX8Wry6:PTnpyNpH/xVyfY8fv/fX97EYhtype: PE32 executable (GUI) Intel 80386, for MS Windows

Version Info:

LegalCopyright: x7248x6743x6240x6709 (C) 2012InternalName: adbrowserFileVersion: 1, 0, 0, 9CompanyName: Net.Soft StudioPrivateBuild: 20120830.01LegalTrademarks: Comments: ProductName: adbrowserSpecialBuild: ProductVersion: 1, 0, 0, 9FileDescription: P2Px7ec8x7ed3x8005x8f85x52a9x6a21x5757OriginalFilename: adbrowser.EXETranslation: 0x0804 0x04b0

Backdoor.Staser also known as:

MicroWorld-eScan Backdoor.Zegost.BC
FireEye Generic.mg.fac18219e1677269
CAT-QuickHeal Trojan.Aksula.A
Qihoo-360 Win32/Backdoor.Gh0st.LS
ALYac Backdoor.Zegost.BC
Cylance Unsafe
VIPRE Win32.Malware!Drop
Sangfor Malware
K7AntiVirus Trojan ( 0040f7ad1 )
BitDefender Backdoor.Zegost.BC
K7GW Trojan ( 0040f7ad1 )
Cybereason malicious.9e1677
TrendMicro BKDR_ZEGOST.SML
BitDefenderTheta Gen:NN.ZexaF.34122.ni1@aOvpuhhb
Cyren W32/S-3d9bc1fd!Eldorado
Baidu Win32.Trojan.Farfli.bg
TrendMicro-HouseCall BKDR_ZEGOST.SML
Avast Win32:Farfli-CF [Cryp]
ClamAV Win.Trojan.Zegost-7007928-0
GData Backdoor.Zegost.BC
Kaspersky Backdoor.Win32.Farfli.alus
Alibaba Backdoor:Win32/Farfli.04fd2e00
NANO-Antivirus Trojan.Win32.TrjGen.csulmd
AegisLab Trojan.Win32.Kykymber.lUlR
APEX Malicious
Rising Backdoor.Farfli!1.B6C5 (CLOUD)
Ad-Aware Backdoor.Zegost.BC
Sophos Troj/Zegost-CV
Comodo TrojWare.Win32.Kryptik.BPVQ@56xtf6
F-Secure Backdoor.BDS/Zegost.mdqcz
DrWeb Trojan.Siggen6.27861
Zillya Trojan.Kryptik.Win32.737668
Invincea heuristic
McAfee-GW-Edition BehavesLike.Win32.Generic.dh
Trapmine malicious.high.ml.score
Emsisoft Backdoor.Zegost.BC (B)
SentinelOne DFI – Suspicious PE
F-Prot W32/S-3d9bc1fd!Eldorado
Jiangmin Trojan/Generic.avrta
Webroot W32.Trojan.Gen
Avira BDS/Zegost.mdqcz
MAX malware (ai score=80)
Antiy-AVL Trojan/Win32.AGeneric
Endgame malicious (high confidence)
Arcabit Backdoor.Zegost.BC
SUPERAntiSpyware Trojan.Agent/Gen-Siggen
ZoneAlarm Backdoor.Win32.Farfli.alus
Microsoft Backdoor:Win32/Zegost.AD
AhnLab-V3 Trojan/Win32.Scar.R65072
Acronis suspicious
McAfee BackDoor-FCGT!FAC18219E167
TACHYON Backdoor/W32.Farfli.215905
VBA32 BScope.Backdoor.Spy
Malwarebytes Backdoor.Staser
Panda Generic Malware
Zoner Trojan.Win32.29512
ESET-NOD32 Win32/Farfli.ARD
Tencent Malware.Win32.Gencirc.10b406f5
Yandex Trojan.Kryptik!BskX9BEG55w
Ikarus Backdoor.Win32.Zegost
Fortinet W32/Farfli.PZA!tr
AVG Win32:Farfli-CF [Cryp]
Paloalto generic.ml
CrowdStrike win/malicious_confidence_100% (W)
MaxSecure Win.MxResIcn.Heur.Gen

How to remove Backdoor.Staser?

  • 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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