MSIL/PSW.Agent.OOH

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

What is MSIL/PSW.Agent.OOH infection?

In this post you will find concerning the meaning of MSIL/PSW.Agent.OOH and also its adverse impact on your computer. Such ransomware are a form of malware that is clarified by online frauds to require paying the ransom money by a victim.

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In the majority of the situations, MSIL/PSW.Agent.OOH ransomware will advise its targets to start funds transfer for the purpose of reducing the effects of the changes that the Trojan infection has actually introduced to the target’s tool.

MSIL/PSW.Agent.OOH Summary

These adjustments can be as adheres to:

  • 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.
  • Reads data out of its own binary image. The trick that allows the malware to read data out of your computer’s memory.

    Everything you run, type, or click on your computer goes through the memory. This includes passwords, bank account numbers, emails, and other confidential information. With this vulnerability, there is the potential for a malicious program to read that data.

  • Anomalous binary characteristics. This is a way of hiding virus’ code from antiviruses and virus’ analysts.
  • Ciphering the papers located on the victim’s hard drive — so the target can no more utilize the information;
  • Preventing normal accessibility 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/PSW.Agent.OOH

One of the most normal networks through which MSIL/PSW.Agent.OOH Trojans are injected are:

  • By ways of phishing e-mails;
  • As a consequence of user ending up on a source that hosts a harmful software;

As soon as the Trojan is effectively infused, it will certainly either cipher the data on the sufferer’s computer or protect against the gadget from operating in a proper fashion – while also placing a ransom note that mentions the requirement for the sufferers to effect the repayment for the purpose of decrypting the files or restoring the data system back to the first problem. In most circumstances, the ransom note will certainly show up when the client reboots the PC after the system has already been harmed.

MSIL/PSW.Agent.OOH circulation networks.

In different edges of the world, MSIL/PSW.Agent.OOH grows by jumps and bounds. However, the ransom notes and methods of extorting the ransom quantity might vary depending upon certain neighborhood (local) setups. The ransom money notes and also methods of extorting the ransom money amount might differ depending on particular neighborhood (local) setups.

Ransomware injection

As an example:

    Faulty alerts about unlicensed software.

    In certain locations, the Trojans commonly wrongfully report having discovered some unlicensed applications enabled on the sufferer’s device. The sharp after that demands the user to pay the ransom money.

    Faulty statements concerning prohibited material.

    In nations where software application piracy is less prominent, this approach is not as reliable for the cyber scams. Conversely, the MSIL/PSW.Agent.OOH popup alert may wrongly assert to be deriving from a law enforcement organization and also will report having situated youngster porn or various other prohibited data on the gadget.

    MSIL/PSW.Agent.OOH popup alert may falsely declare to be deriving from a legislation enforcement organization as well as will report having located child pornography or various other unlawful information on the device. The alert will similarly contain a demand for the customer to pay the ransom.

Technical details

File Info:

crc32: 071BA7AB
md5: 7f5475f6e27c370715eda40d9ca09923
name: 7F5475F6E27C370715EDA40D9CA09923.mlw
sha1: b412aa86ee5f6bfd7af66bad7b582dfbd4afe836
sha256: 8cf35dfb9e9238ef1ae592b7ee478a02fbb693f822e3ab48271e86e9876959bd
sha512: 105882c2316fa772aa6c8ebbb21b85d64a60fe4f8959d72f40b8af137b4cd413f135b065acba838f6b1a03ea4fa9607121caad59a74786f7db4e02999112e962
ssdeep: 192:C9Ey0g/l3ZWOPisTLnUeDskpjnWpbhglnVS+Wu:C+/gN37TLUDkpjnshgBVNW
type: PE32 executable (console) Intel 80386 Mono/.Net assembly, for MS Windows

Version Info:

Translation: 0x0000 0x04b0
LegalCopyright: Copyright xa9 2011
Assembly Version: 1.0.0.0
InternalName: DPAPI.exe
FileVersion: 1.0.0.0
CompanyName:
LegalTrademarks:
Comments:
ProductName: DPAPI
ProductVersion: 1.0.0.0
FileDescription: DPAPI
OriginalFilename: DPAPI.exe

MSIL/PSW.Agent.OOH also known as:

GridinSoftTrojan.Ransom.Gen
K7AntiVirusPassword-Stealer ( 0055e3ee1 )
McAfeeArtemis!7F5475F6E27C
CylanceUnsafe
ZillyaTrojan.Blocker.Win32.32247
SangforTrojan.Win32.Blocker.usrg
CrowdStrikewin/malicious_confidence_100% (W)
AlibabaRansom:Win32/Blocker.f24b682a
K7GWPassword-Stealer ( 0055e3ee1 )
Cybereasonmalicious.6e27c3
ESET-NOD32a variant of MSIL/PSW.Agent.OOH
APEXMalicious
AvastWin32:Malware-gen
CynetMalicious (score: 85)
KasperskyTrojan-Ransom.Win32.Blocker.hvek
NANO-AntivirusTrojan.Win32.Blocker.dypkqv
MicroWorld-eScanGen:Variant.Ursu.435368
TencentWin32.Trojan.Blocker.Akfk
SophosMal/Generic-S
ComodoMalware@#2l75x9vt84cmp
VIPRETrojan.Win32.Generic!BT
EmsisoftGen:Variant.Ursu.435368 (B)
AviraTR/Spy.Agent.9728.55
Antiy-AVLTrojan[Ransom]/Win32.Blocker
KingsoftWin32.Troj.Undef.(kcloud)
ArcabitTrojan.Ursu.D6A4A8
AegisLabTrojan.Win32.Blocker.j!c
ZoneAlarmTrojan-Ransom.Win32.Blocker.hvek
MicrosoftTrojanSpy:Win32/Skeeyah.A!rfn
VBA32TScope.Trojan.MSIL
MalwarebytesGeneric.Malware/Suspicious
YandexTrojan.Blocker!xK35oBecav8
IkarusTrojan.MSIL.PSW
FortinetMSIL/Agent.OOH!tr.pws
AVGWin32:Malware-gen
Qihoo-360Win32/Ransom.Blocker.HgIASOYA

How to remove MSIL/PSW.Agent.OOH virus?

Unwanted application has ofter come with other viruses and spyware. This threats can steal account credentials, or crypt your documents for ransom.
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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/PSW.Agent.OOH 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:

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Full version of GridinSoft Anti-Malware

If the guide doesn’t help you to remove MSIL/PSW.Agent.OOH 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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