MSIL/Agent.SIB

What is the Win32:Evo-gen [Trj] virus?
Written by Robert Bailey

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.

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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: 29B75B93
md5: ec013067a4328f5e2fabd1ba28413a1c
name: EC013067A4328F5E2FABD1BA28413A1C.mlw
sha1: 87992cee865bed9581c3e501a36c39c621183a60
sha256: 0f154672427b1c1193a76d3ee72a849b9adebcd9439958f88ae62135333a96ef
sha512: 3f46a4a4b39914b2c60cff937dd67d022cfbe7cf721f40ad2224191096a17700df4e86515d97f30ff472bb5103474320bd68cd4bd53c7ccd14faa3da109da601
ssdeep: 3072:C3i9k6WpALyOYqVxpPQtgqSxh+1NsaOzw:C3i9tWpALyO7/qYhIsaOM
type: PE32 executable (GUI) Intel 80386 Mono/.Net assembly, for MS Windows

Version Info:

Translation: 0x0000 0x04b0
LegalCopyright: Copyright xa9 2017
Assembly Version: 1.0.0.0
InternalName: imndprsw.exe
FileVersion: 1.0.0.0
CompanyName: Microsoft
ProductVersion: 1.0.0.0
FileDescription: Windows Applications
OriginalFilename: imndprsw.exe

MSIL/Agent.SIB also known as:

GridinSoftTrojan.Ransom.Gen
MicroWorld-eScanGen:Variant.Strictor.8195
ALYacGen:Variant.Strictor.8195
CylanceUnsafe
K7GWTrojan ( 700000121 )
K7AntiVirusTrojan ( 700000121 )
BaiduWin32.Trojan.WisdomEyes.16070401.9500.9625
CyrenW32/Trojan.JFHJ-0127
SymantecML.Attribute.HighConfidence
ESET-NOD32a variant of MSIL/Agent.SIB
AvastWin32:Malware-gen
GDataGen:Variant.Strictor.8195
KasperskyHEUR:Trojan-Ransom.Win32.Generic
BitDefenderGen:Variant.Strictor.8195
ViRobotTrojan.Win32.Z.Strictor.251904
TencentWin32.Trojan.Generic.Ajuv
Ad-AwareGen:Variant.Strictor.8195
F-SecureGen:Variant.Strictor.8195
VIPRETrojan.Win32.Generic.pak!cobra
Invinceaheuristic
McAfee-GW-EditionBehavesLike.Win32.Dropper.dm
EmsisoftGen:Variant.Strictor.8195 (B)
Endgamemalicious (moderate confidence)
AviraTR/Agent.yohql
Antiy-AVLTrojan/Generic.ASVCS3S.18C
ArcabitTrojan.Strictor.D2003
AegisLabTroj.Ransom.W32!c
ZoneAlarmHEUR:Trojan-Ransom.Win32.Generic
AhnLab-V3Trojan/Win32.Abnores.R194594
McAfeeArtemis!EC013067A432
AVwareTrojan.Win32.Generic.pak!cobra
MAXmalware (ai score=98)
PandaTrj/GdSda.A
TrendMicro-HouseCallTROJ_GEN.R002H0CEH18
IkarusTrojan.MSIL.Agent
FortinetMSIL/Agent.SIB!tr
AVGWin32:Malware-gen
Paloaltogeneric.ml
Qihoo-360Win32/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

There is no better way to recognize, remove and prevent PC threats than to use an anti-malware software from GridinSoft2.

Download GridinSoft Anti-Malware.

You can download GridinSoft Anti-Malware by clicking the button below:

Run the setup file.

When setup file has finished downloading, double-click on the setup-antimalware-fix.exe file to install GridinSoft Anti-Malware on your system.

Run Setup.exe

An User Account Control asking you about to allow GridinSoft Anti-Malware to make changes to your device. So, you should click “Yes” to continue with the installation.

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 will automatically start scanning your system for MSIL/Agent.SIB files and other malicious programs. This process can take a 20-30 minutes, so I suggest you periodically check on the status of the scan process.

GridinSoft Anti-Malware Scanning

Click on “Clean Now”.

When the scan has finished, you will see the list of infections that GridinSoft Anti-Malware has detected. To remove them click on the “Clean Now” button in right corner.

GridinSoft Anti-Malware Scan Result

Are Your Protected?

GridinSoft Anti-Malware will scan and clean your PC for free in the trial period. The free version offer real-time protection for first 2 days. If you want to be fully protected at all times – I can recommended you to purchase a full version:

Full version of GridinSoft

Full version of GridinSoft Anti-Malware

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

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References

  1. GridinSoft Anti-Malware Review from HowToFix site: https://howtofix.guide/gridinsoft-anti-malware/
  2. More information about GridinSoft products: https://gridinsoft.com/comparison

About the author

Robert Bailey

I'm Robert Bailey, a passionate Security Engineer with a deep fascination for all things related to malware, reverse engineering, and white hat ethical hacking.

As a white hat hacker, I firmly believe in the power of ethical hacking to bolster security measures. By identifying vulnerabilities and providing solutions, I contribute to the proactive defense of digital infrastructures.

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