Categories: Backdoor

How to remove “Backdoor.Agent.STB”?

The Backdoor.Agent.STB 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.Agent.STB virus can do?

  • The binary likely contains encrypted or compressed data.
  • Anomalous binary characteristics

How to determine Backdoor.Agent.STB?


File Info:

crc32: 509E162Bmd5: 6e7e08e45de22a6d726dc5222f9a91ffname: 6E7E08E45DE22A6D726DC5222F9A91FF.mlwsha1: c7c0d75e85c7a2369691e7411ae4beb94166fdddsha256: f1c88cd046b0ca224a1867d76d75a0e5e64db16c4f679578a3f1ded63f0872dcsha512: 619f015ed4ac98a66f70539038ad9ff1026f5f6de33d0a61ef4a17915e1073253c06056c789b01d89f81bbbcb138f7f79a9c2842afacd35c927ad9ea7137deb4ssdeep: 3072:/aObYrSD4kjua2DH4xWe5GWp1icKAArDZz4N9GhbkrNEk1ErhxQ7PW:/aKMSD4Yuaesp0yN90QEXhq6type: PE32+ executable (GUI) x86-64, for MS Windows

Version Info:

LegalCopyright: xa9 Microsoft Corporation. All rights reserved.InternalName: Wextract FileVersion: 8.00.7600.16385 (win7_rtm.090713-1255)CompanyName: Microsoft CorporationProductName: Windowsxae Internet ExplorerProductVersion: 8.00.7600.16385FileDescription: Win32 Cabinet Self-Extractor OriginalFilename: WEXTRACT.EXE .MUITranslation: 0x0409 0x04b0

Backdoor.Agent.STB also known as:

Elastic malicious (high confidence)
DrWeb BackDoor.Comet.152
FireEye Generic.mg.6e7e08e45de22a6d
McAfee Artemis!6E7E08E45DE2
Cylance Unsafe
VIPRE Trojan.Win32.Generic!BT
AegisLab Trojan.Win32.Blocker.j!c
Sangfor Ransom.Win32.Blocker.8
Cybereason malicious.45de22
Symantec Trojan.Gen
ESET-NOD32 multiple detections
APEX Malicious
TotalDefense Win32/Tnega.XARZ!suspicious
Avast MSIL:Agent-ACX [Trj]
Kaspersky Trojan-Ransom.Win32.Blocker.erif
NANO-Antivirus Trojan.Win32.Krolol.dchiwh
Tencent Trojan-Ransom.Win32.Blocker.a
Comodo Malware@#jsg141blnkb2
F-Secure Trojan.TR/ATRAPS.Gen
Baidu Win32.Trojan-Dropper.Agent.ca
TrendMicro Ransom_Blocker.R002C0OL520
McAfee-GW-Edition GenericRXEC-BU!8E0554D92A78
SentinelOne Static AI – Malicious SFX
eGambit Unsafe.AI_Score_93%
Avira TR/ATRAPS.Gen
Antiy-AVL Trojan[Ransom]/Win32.Blocker
Kingsoft Win32.Troj.Undef.(kcloud)
Microsoft Trojan:Win32/Wacatac.B!ml
ZoneAlarm Trojan-Ransom.Win32.Blocker.erif
GData Win32.Trojan-Dropper.BeiF.A
Cynet Malicious (score: 100)
Malwarebytes Backdoor.Agent.STB
Panda Trj/CI.A
TrendMicro-HouseCall Ransom_Blocker.R002C0OL520
Rising Ransom.Blocker!8.12A (CLOUD)
Yandex Trojan.Blocker!om7bUCdSlWg
Ikarus Worm.MSIL.Agent
Fortinet MSIL/Agent.EZ!worm
AVG MSIL:Agent-ACX [Trj]
Paloalto generic.ml
CrowdStrike win/malicious_confidence_80% (D)
Qihoo-360 Win32/Trojan.Ransom.777

How to remove Backdoor.Agent.STB?

  • 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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