MSIL/Agent.SIB

What is MSIL/Agent.SIB infection?

In this post you will certainly discover concerning the definition of MSIL/Agent.SIB and also its negative influence on your computer. Such ransomware are a form of malware that is specified by online scams to require paying the ransom money by a victim.

Most of the cases, MSIL/Agent.SIB infection will advise its victims to initiate funds move for the objective of neutralizing the amendments that the Trojan infection has introduced to the target’s tool.

MSIL/Agent.SIB Summary

These adjustments can be as complies with:

  • Creates RWX memory. There is a security trick with memory regions that allows an attacker to fill a buffer with a shellcode and then execute it. Filling a buffer with shellcode isn’t a big deal, it’s just data. The problem arises when the attacker is able to control the instruction pointer (EIP), usually by corrupting a function’s stack frame using a stack-based buffer overflow, and then changing the flow of execution by assigning this pointer to the address of the shellcode.
  • Network activity detected but not expressed in API logs. Microsoft built an API solution right into its Windows operating system it reveals network activity for all apps and programs that ran on the computer in the past 30-days. This malware hides network activity.
  • Ciphering the files located on the sufferer’s hard drive — so the target can no more make use of the information;
  • Preventing routine access to the target’s workstation. This is the typical behavior of a virus called locker. It blocks access to the computer until the victim pays the ransom.

MSIL/Agent.SIB

The most common networks whereby MSIL/Agent.SIB Trojans are infused are:

  • By ways of phishing e-mails;
  • As an effect of user ending up on a resource that hosts a harmful software;

As quickly as the Trojan is efficiently infused, it will certainly either cipher the information on the sufferer’s computer or prevent the gadget from functioning in an appropriate fashion – while additionally positioning a ransom money note that discusses the demand for the victims to impact the settlement for the purpose of decrypting the records or bring back the documents system back to the initial problem. In the majority of instances, the ransom note will come up when the customer restarts the PC after the system has actually already been harmed.

MSIL/Agent.SIB distribution networks.

In different corners of the globe, MSIL/Agent.SIB grows by leaps and also bounds. Nonetheless, the ransom notes as well as methods of obtaining the ransom money quantity may differ depending upon particular neighborhood (local) setups. The ransom money notes and also methods of extorting the ransom money amount may differ depending on specific neighborhood (regional) setups.

Ransomware injection

For instance:

    Faulty notifies concerning unlicensed software.

    In certain locations, the Trojans usually wrongfully report having found some unlicensed applications allowed on the victim’s tool. The sharp then demands the individual to pay the ransom.

    Faulty statements about prohibited material.

    In nations where software application piracy is much less prominent, this method is not as effective for the cyber frauds. Conversely, the MSIL/Agent.SIB popup alert may wrongly assert to be deriving from a police organization as well as will report having situated child pornography or other prohibited data on the gadget.

    MSIL/Agent.SIB popup alert may falsely declare to be acquiring from a regulation enforcement organization and also will report having located youngster pornography or other prohibited information on the gadget. The alert will likewise consist of a requirement for the user to pay the ransom money.

Technical details

File Info:

crc32: 29B75B93md5: ec013067a4328f5e2fabd1ba28413a1cname: EC013067A4328F5E2FABD1BA28413A1C.mlwsha1: 87992cee865bed9581c3e501a36c39c621183a60sha256: 0f154672427b1c1193a76d3ee72a849b9adebcd9439958f88ae62135333a96efsha512: 3f46a4a4b39914b2c60cff937dd67d022cfbe7cf721f40ad2224191096a17700df4e86515d97f30ff472bb5103474320bd68cd4bd53c7ccd14faa3da109da601ssdeep: 3072:C3i9k6WpALyOYqVxpPQtgqSxh+1NsaOzw:C3i9tWpALyO7/qYhIsaOMtype: PE32 executable (GUI) Intel 80386 Mono/.Net assembly, for MS Windows

Version Info:

Translation: 0x0000 0x04b0LegalCopyright: Copyright xa9 2017Assembly Version: 1.0.0.0InternalName: imndprsw.exeFileVersion: 1.0.0.0CompanyName: MicrosoftProductVersion: 1.0.0.0FileDescription: Windows ApplicationsOriginalFilename: imndprsw.exe

MSIL/Agent.SIB also known as:

GridinSoft Trojan.Ransom.Gen
MicroWorld-eScan Gen:Variant.Strictor.8195
ALYac Gen:Variant.Strictor.8195
Cylance Unsafe
K7GW Trojan ( 700000121 )
K7AntiVirus Trojan ( 700000121 )
Baidu Win32.Trojan.WisdomEyes.16070401.9500.9625
Cyren W32/Trojan.JFHJ-0127
Symantec ML.Attribute.HighConfidence
ESET-NOD32 a variant of MSIL/Agent.SIB
Avast Win32:Malware-gen
GData Gen:Variant.Strictor.8195
Kaspersky HEUR:Trojan-Ransom.Win32.Generic
BitDefender Gen:Variant.Strictor.8195
ViRobot Trojan.Win32.Z.Strictor.251904
Tencent Win32.Trojan.Generic.Ajuv
Ad-Aware Gen:Variant.Strictor.8195
F-Secure Gen:Variant.Strictor.8195
VIPRE Trojan.Win32.Generic.pak!cobra
Invincea heuristic
McAfee-GW-Edition BehavesLike.Win32.Dropper.dm
Emsisoft Gen:Variant.Strictor.8195 (B)
Endgame malicious (moderate confidence)
Avira TR/Agent.yohql
Antiy-AVL Trojan/Generic.ASVCS3S.18C
Arcabit Trojan.Strictor.D2003
AegisLab Troj.Ransom.W32!c
ZoneAlarm HEUR:Trojan-Ransom.Win32.Generic
AhnLab-V3 Trojan/Win32.Abnores.R194594
McAfee Artemis!EC013067A432
AVware Trojan.Win32.Generic.pak!cobra
MAX malware (ai score=98)
Panda Trj/GdSda.A
TrendMicro-HouseCall TROJ_GEN.R002H0CEH18
Ikarus Trojan.MSIL.Agent
Fortinet MSIL/Agent.SIB!tr
AVG Win32:Malware-gen
Paloalto generic.ml
Qihoo-360 Win32/Trojan.Ransom.793

How to remove MSIL/Agent.SIB ransomware?

Unwanted application has ofter come with other viruses and spyware. This threats can steal account credentials, or crypt your documents for ransom.
Reasons why I would recommend GridinSoft1

Run the setup file.

Run Setup.exe
GridinSoft Anti-Malware Setup

Press “Install” button.

GridinSoft Anti-Malware Install

Once installed, Anti-Malware will automatically run.

GridinSoft Anti-Malware Splash-Screen

Wait for the Anti-Malware scan to complete.

GridinSoft Anti-Malware Scanning

Click on “Clean Now”.

GridinSoft Anti-Malware Scan Result

Are Your Protected?

Full version of GridinSoft

If the guide doesn’t help you to remove MSIL/Agent.SIB you can always ask me in the comments for getting help.

References

    About the author

    Robert Bailey

    Security engineer focused on malware behavior, removal workflows, and Windows hardening. Robert reviews threat articles for practical accuracy, checking detection names, symptoms, and cleanup steps before publication.

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