Trojan:Win32/Protob.B
Daniel Foster
Updated on March 18, 2026
What is Trojan:Win32/Protob.B infection?
In this post you will certainly discover about the meaning of Trojan:Win32/Protob.B and its negative impact on your computer system. Such ransomware are a kind of malware that is elaborated by on-line fraudulences to require paying the ransom by a sufferer.
Most of the situations, Trojan:Win32/Protob.B ransomware will instruct its targets to launch funds transfer for the purpose of reducing the effects of the modifications that the Trojan infection has actually introduced to the victim’s tool.
Trojan:Win32/Protob.B Summary
These adjustments can be as follows:
- Executable code extraction;
- Attempts to connect to a dead IP:Port (1 unique times);
- A process attempted to delay the analysis task.;
- Performs some HTTP requests;
- Unconventionial language used in binary resources: Spanish (Modern);
- Sniffs keystrokes;
- Installs itself for autorun at Windows startup;
- Anomalous binary characteristics;
- Ciphering the papers found on the target’s hard drive — so the sufferer can no longer make use of the information;
- Preventing regular access to the sufferer’s workstation;
Related domains:
| Trojan-Ransom.Win32.Blocker.msvu |
Trojan:Win32/Protob.B
The most normal channels whereby Trojan:Win32/Protob.B Ransomware Trojans are infused are:
- By means of phishing emails;
- As a consequence of customer winding up on a source that organizes a malicious software program;
As soon as the Trojan is effectively infused, it will certainly either cipher the information on the victim’s PC or avoid the device from working in a proper manner – while also placing a ransom note that states the need for the sufferers to impact the settlement for the objective of decrypting the records or bring back the documents system back to the first problem. In many circumstances, the ransom money note will certainly turn up when the customer restarts the COMPUTER after the system has actually currently been damaged.
Trojan:Win32/Protob.B distribution networks.
In various corners of the globe, Trojan:Win32/Protob.B expands by leaps and bounds. Nonetheless, the ransom money notes as well as methods of obtaining the ransom amount might differ depending on specific regional (regional) setups. The ransom notes and also methods of obtaining the ransom money quantity might differ depending on certain regional (local) settings.
As an example:
Faulty signals about unlicensed software application.
In specific areas, the Trojans often wrongfully report having actually detected some unlicensed applications enabled on the victim’s tool. The alert after that demands the individual to pay the ransom.
Faulty statements concerning unlawful material.
In countries where software piracy is much less preferred, this technique is not as efficient for the cyber frauds. Additionally, the Trojan:Win32/Protob.B popup alert might incorrectly assert to be originating from a law enforcement establishment and also will certainly report having located child pornography or various other illegal data on the device.
Trojan:Win32/Protob.B popup alert may incorrectly assert to be obtaining from a regulation enforcement establishment and will certainly report having situated kid pornography or various other unlawful information on the device. The alert will in a similar way include a requirement for the customer to pay the ransom money.
Technical details
File Info:
crc32: 1C3CB45Cmd5: 9f2f86f41044caacdc156dab963f281aname: 9F2F86F41044CAACDC156DAB963F281A.mlwsha1: c3ea775625b607d9f761db7d15ecf607403f0fe4sha256: f11f2d4ff77a46677f36f4e86bde201e6e1112301e39063da3a08ca8c51ef074sha512: d3748c507a5b32de1abf99f453edc4455d828502839f20aae01d4d5a884746434a36c2c7a7aeaab4cc59dff41ca6818b7ff0defeb0a2f7c3531348b1c122e5f9ssdeep: 12288:zZ+KqH7zak7K0IXMBR6yrD7VORbCV/hWC:zji7zakIsR6yroRCV/hWCtype: PE32 executable (GUI) Intel 80386, for MS WindowsVersion Info:
Translation: 0x0c0a 0x04b0InternalName: STUBPFileVersion: 1.00.0410CompanyName: MicrosoftProductName: MicrosoftProductVersion: 1.00.0410OriginalFilename: STUBP.exe
Trojan:Win32/Protob.B also known as:
| GridinSoft | Trojan.Ransom.Gen |
| K7AntiVirus | NetWorm ( 700000151 ) |
| Elastic | malicious (high confidence) |
| DrWeb | Trojan.DownLoader35.49932 |
| CAT-QuickHeal | Trojan.NetbotaMF.S21116285 |
| ALYac | Gen:Trojan.Heur.Nm0@f99zOoR |
| Sangfor | Trojan.Win32.Save.a |
| CrowdStrike | win/malicious_confidence_100% (W) |
| K7GW | NetWorm ( 700000151 ) |
| Cybereason | malicious.41044c |
| Cyren | W32/Hupigon.D.gen!Eldorado |
| Symantec | ML.Attribute.HighConfidence |
| ESET-NOD32 | a variant of Win32/VB.OPL |
| APEX | Malicious |
| Avast | Win32:DropperX-gen [Drp] |
| Cynet | Malicious (score: 100) |
| Kaspersky | Trojan-Ransom.Win32.Blocker.msvu |
| BitDefender | Gen:Trojan.Heur.Nm0@f99zOoR |
| MicroWorld-eScan | Gen:Trojan.Heur.Nm0@f99zOoR |
| Ad-Aware | Gen:Trojan.Heur.Nm0@f99zOoR |
| Sophos | Mal/Generic-S |
| BitDefenderTheta | AI:Packer.DFC0442B1B |
| McAfee-GW-Edition | BehavesLike.Win32.Generic.jh |
| FireEye | Generic.mg.9f2f86f41044caac |
| Emsisoft | Gen:Trojan.Heur.Nm0@f99zOoR (B) |
| SentinelOne | Static AI – Malicious PE |
| Avira | TR/Dropper.Gen |
| Microsoft | Trojan:Win32/Protob.B |
| GData | Gen:Trojan.Heur.Nm0@f99zOoR |
| AhnLab-V3 | Malware/Win32.RL_Generic.R298488 |
| McAfee | Artemis!9F2F86F41044 |
| MAX | malware (ai score=89) |
| VBA32 | SScope.Malware-Cryptor.VBCR.2841 |
| Panda | Trj/CI.A |
| Ikarus | Trojan.Win32.VB |
| AVG | Win32:DropperX-gen [Drp] |
How to remove Trojan:Win32/Protob.B ransomware?
There is no better way to recognize, remove and prevent PC threats than to use an anti-malware software from GridinSoft">2.
Download GridinSoft Anti-Malware.
You can download GridinSoft Anti-Malware by clicking the button below:
Download GridinSoft Anti-MalwareRun 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.
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.
Press “Install” button.
Once installed, Anti-Malware will automatically run.
Wait for the Anti-Malware scan to complete.
GridinSoft Anti-Malware will automatically start scanning your system for Trojan:Win32/Protob.B 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.
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.
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 Anti-Malware
If the guide doesn’t help you to remove Trojan:Win32/Protob.B you can always ask me in the comments for getting help.
References
- GridinSoft Anti-Malware Review from HowToFix site:
- More information about GridinSoft products:
