Categories: Malware

MSIL/Agent.STT removal guide

The MSIL/Agent.STT 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 MSIL/Agent.STT virus can do?

  • SetUnhandledExceptionFilter detected (possible anti-debug)
  • Creates RWX memory
  • Guard pages use detected – possible anti-debugging.
  • Dynamic (imported) function loading detected
  • Enumerates the modules from a process (may be used to locate base addresses in process injection)
  • CAPE extracted potentially suspicious content
  • The binary likely contains encrypted or compressed data.
  • Authenticode signature is invalid

How to determine MSIL/Agent.STT?


File Info:

name: A94BAA712C76A7F68A8A.mlwpath: /opt/CAPEv2/storage/binaries/9e0cbe12e9ef62a98dd01c6687092dbc7198c135844d46e83ddb95b56bc8457dcrc32: 55C00C1Amd5: a94baa712c76a7f68a8af16f1ab3147asha1: a137c9f2353c882a6b1ac0ffbca0923c0c20b678sha256: 9e0cbe12e9ef62a98dd01c6687092dbc7198c135844d46e83ddb95b56bc8457dsha512: 538973253a59997dbb05e55913c00332505a1d22c6f301aea03a03b77e35de6b46c5606a88520d0564c69bcd18c0fbc0847dce518b69cbcca68a8701d096fa26ssdeep: 98304:RdiRSQ9oaGQsXc7dQYl7dN+47de087dvpl7dLBe7dww7d2:REkQz4qmKbrMxJvRqi2type: PE32 executable (GUI) Intel 80386, for MS Windowstlsh: T17AF5D0013BE84A19D1BE8BF574B216004736BF4BD92AC7BD1C86719D25E6BC0B612BD3sha3_384: 438e911106baee5009d04270954e50d29a2691e7f21633171b2ecb7111ec72166beeac9e96022088984188ab94b3ea11ep_bytes: ff250020400000000000000000000000timestamp: 2020-08-29 09:15:19

Version Info:

Translation: 0x0000 0x04b0Comments: 欢迎使用啊呀远控,请访问我们的网站http://www.51aya.com,客服QQ:289395828CompanyName: FileDescription: 管理端FileVersion: 6.5.0.0InternalName: Manage.exeLegalCopyright: 2016 - 2019 啊呀远控管理LegalTrademarks: OriginalFilename: Manage.exeProductName: 啊呀远控电脑手机版管理端ProductVersion: 6.5.0.0Assembly Version: 6.5.0.0

MSIL/Agent.STT also known as:

Lionic Trojan.Win32.Razy.4!c
MicroWorld-eScan IL:Trojan.MSILZilla.7400
ALYac IL:Trojan.MSILZilla.7400
Cylance Unsafe
VIPRE Trojan.Win32.Generic!BT
Sangfor Riskware.Win32.Wacapew.C
K7AntiVirus Trojan ( 0054202c1 )
BitDefender IL:Trojan.MSILZilla.7400
K7GW Trojan ( 0054202c1 )
Cybereason malicious.12c76a
Symantec ML.Attribute.HighConfidence
ESET-NOD32 a variant of MSIL/Agent.STT
APEX Malicious
Paloalto generic.ml
Alibaba Trojan:MSIL/Generic.f2a95e95
Avast Win32:TrojanX-gen [Trj]
Tencent Malware.Win32.Gencirc.11af3d04
Sophos Mal/Generic-S
DrWeb Trojan.Siggen7.54371
Zillya Trojan.Agent.Win32.1381126
TrendMicro TROJ_GEN.R002C0PIK21
McAfee-GW-Edition GenericRXLX-IY!A94BAA712C76
FireEye Generic.mg.a94baa712c76a7f6
Emsisoft IL:Trojan.MSILZilla.7400 (B)
Ikarus Trojan.MSIL.Agent
Avira TR/Agent.pjjsv
Microsoft Trojan:Win32/Wacatac.B!ml
GData IL:Trojan.MSILZilla.7400
Cynet Malicious (score: 99)
AhnLab-V3 Trojan/Win.IY.C4639666
McAfee GenericRXLX-IY!A94BAA712C76
MAX malware (ai score=80)
VBA32 TScope.Trojan.MSIL
Malwarebytes Malware.AI.956200249
TrendMicro-HouseCall TROJ_GEN.R002C0PIK21
Rising Backdoor.AyaRC!1.D3FB (CLASSIC)
Yandex Trojan.Agent!CYgGjcUkEaQ
SentinelOne Static AI – Suspicious PE
MaxSecure Trojan.Malware.300983.susgen
Fortinet W32/Agent.STT!tr
BitDefenderTheta Gen:NN.ZemsilF.34182.mp0@a4fWSDk
AVG Win32:TrojanX-gen [Trj]
Panda Trj/GdSda.A

How to remove MSIL/Agent.STT?

  • 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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