Trojan:Win32/Stoberox.B
Sarah Oconnell
Updated on February 24, 2026
What is Trojan:Win32/Stoberox.B infection?
In this short article you will find about the interpretation of Trojan:Win32/Stoberox.B and its negative effect on your computer system. Such ransomware are a type of malware that is clarified by online frauds to require paying the ransom by a target.
In the majority of the situations, Trojan:Win32/Stoberox.B infection will instruct its targets to start funds move for the purpose of neutralizing the amendments that the Trojan infection has actually introduced to the target’s device.
Trojan:Win32/Stoberox.B Summary
These adjustments can be as complies with:
- Injection (inter-process);
- Injection (Process Hollowing);
- Injection with CreateRemoteThread in a remote process;
- 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.
- Starts servers listening on 0.0.0.0:3700, 0.0.0.0:8373;
- Drops a binary and executes it. Trojan-Downloader installs itself to the system and waits until an Internet connection becomes available to connect to a remote server or website in order to download additional malware onto the infected computer.
- Unconventionial language used in binary resources: Syriac;
- The binary likely contains encrypted or compressed data. In this case, encryption is a way of hiding virus’ code from antiviruses and virus’ analysts.
- Uses Windows utilities for basic functionality;
- Executed a process and injected code into it, probably while unpacking;
- Code injection with CreateRemoteThread in a remote process;
- Attempts to remove evidence of file being downloaded from the Internet;
- A process attempted to delay the analysis task by a long amount of time.;
- Attempts to repeatedly call a single API many times in order to delay analysis time. This significantly complicates the work of the virus analyzer. Typical malware tactics!
- Mimics the file times of a Windows system file;
- Creates a hidden or system file. The malware adds the hidden attribute to every file and folder on your system, so it appears as if everything has been deleted from your hard drive.
- Operates on local firewall’s policies and settings;
- Anomalous binary characteristics. This is a way of hiding virus’ code from antiviruses and virus’ analysts.
- Ciphering the documents found on the victim’s hard disk drive — so the target can no more make use of the information;
- Preventing regular access to the sufferer’s workstation. This is the typical behavior of a virus called locker. It blocks access to the computer until the victim pays the ransom.
Trojan:Win32/Stoberox.B
The most normal networks whereby Trojan:Win32/Stoberox.B Ransomware are infused are:
- By means of phishing emails;
- As a repercussion of customer ending up on a resource that hosts a harmful software program;
As quickly as the Trojan is effectively injected, it will either cipher the data on the target’s PC or avoid the tool from working in an appropriate manner – while additionally positioning a ransom money note that points out the requirement for the sufferers to impact the settlement for the function of decrypting the documents or restoring the data system back to the initial condition. In most circumstances, the ransom money note will certainly show up when the customer reboots the PC after the system has already been harmed.
Trojan:Win32/Stoberox.B distribution channels.
In numerous corners of the world, Trojan:Win32/Stoberox.B grows by leaps as well as bounds. However, the ransom money notes as well as techniques of obtaining the ransom money quantity might vary depending on particular neighborhood (regional) settings. The ransom money notes as well as methods of extorting the ransom quantity might vary depending on specific regional (regional) settings.
As an example:
Faulty alerts about unlicensed software application.
In certain locations, the Trojans frequently wrongfully report having identified some unlicensed applications allowed on the victim’s gadget. The alert after that requires the customer to pay the ransom money.
Faulty statements regarding unlawful content.
In nations where software program piracy is much less preferred, this approach is not as effective for the cyber frauds. Alternatively, the Trojan:Win32/Stoberox.B popup alert may falsely assert to be originating from a police institution and also will certainly report having located child pornography or various other prohibited data on the gadget.
Trojan:Win32/Stoberox.B popup alert might falsely declare to be obtaining from a regulation enforcement institution as well as will report having located child pornography or other prohibited information on the gadget. The alert will likewise have a requirement for the user to pay the ransom.
Technical details
File Info:
crc32: 5C1FFCE6md5: 84d9595292523984220f61c3be37fc80name: 84D9595292523984220F61C3BE37FC80.mlwsha1: c5e2642b2c628940db8e80da0b50652af2982598sha256: bf9e21764aca7786311da5655fc2b9bc4ae64cf5a4ef0a743e6b3854cbf95fc6sha512: 44488003ec057613893efc07ccfaa09d0439de4263e737eddafc2cb1b4fc1c0d06ca66cae7a18320c55130d120b0e948a9b119bd6506492b3add8fd8d9e78ca5ssdeep: 3072:NCBaEANS2A0YtlRmuFIAwP1pesuMN9i3:NaaEAK0YtThQ3J9type: PE32 executable (GUI) Intel 80386, for MS WindowsVersion Info:
LegalCopyright: Copyright xa9 1997-2011 Simon Tatham.InternalName: PuTTYFileVersion: Release 0.62CompanyName: Simon TathamProductName: PuTTY suiteProductVersion: Release 0.62FileDescription: SSH, Telnet and Rlogin clientOriginalFilename: PuTTYTranslation: 0x0809 0x04b0
Trojan:Win32/Stoberox.B also known as:
| GridinSoft | Trojan.Ransom.Gen |
| Bkav | W32.AIDetect.malware1 |
| K7AntiVirus | Trojan ( 0040f8241 ) |
| Elastic | malicious (high confidence) |
| DrWeb | BackDoor.Tishop.25 |
| Cynet | Malicious (score: 100) |
| ALYac | Gen:Variant.Symmi.23358 |
| Malwarebytes | Trojan.FakePutt |
| Zillya | Trojan.Injector.Win32.407141 |
| Sangfor | Trojan.Win32.Save.a |
| CrowdStrike | win/malicious_confidence_80% (D) |
| Alibaba | Ransom:Win32/Foreign.db83ed91 |
| K7GW | Trojan ( 0040f8241 ) |
| Cybereason | malicious.292523 |
| Cyren | W32/S-f21b3f83!Eldorado |
| ESET-NOD32 | a variant of Win32/Injector.AISI |
| Zoner | Trojan.Win32.16705 |
| APEX | Malicious |
| TotalDefense | Win32/Matsnu.BS |
| Avast | Win32:Cryptor |
| Kaspersky | Trojan-Ransom.Win32.Foreign.ehjy |
| BitDefender | Gen:Variant.Symmi.23358 |
| NANO-Antivirus | Virus.Win32.Gen-Crypt.ccnc |
| MicroWorld-eScan | Gen:Variant.Symmi.23358 |
| Tencent | Win32.Trojan.Foreign.Ecar |
| Ad-Aware | Gen:Variant.Symmi.23358 |
| Sophos | ML/PE-A + Mal/EncPk-AKA |
| Comodo | TrojWare.Win32.Ransom.Foreign.EHJY@538z47 |
| BitDefenderTheta | Gen:NN.ZexaF.34628.iu0@aiGxcGiO |
| VIPRE | Trojan.Win32.Reveton.a (v) |
| TrendMicro | TROJ_SPNR.1BG313 |
| McAfee-GW-Edition | BehavesLike.Win32.Generic.ch |
| FireEye | Generic.mg.84d9595292523984 |
| Emsisoft | Gen:Variant.Symmi.23358 (B) |
| SentinelOne | Static AI – Suspicious PE |
| Jiangmin | Trojan/Foreign.otg |
| Webroot | Trojan.Dropper.Gen |
| Avira | TR/Crypt.XPACK.Gen7 |
| eGambit | Generic.Malware |
| Kingsoft | Win32.Troj.Undef.(kcloud) |
| Microsoft | Trojan:Win32/Stoberox.B |
| Arcabit | Trojan.Symmi.D5B3E |
| AegisLab | Trojan.Win32.Foreign.4!c |
| GData | Gen:Variant.Symmi.23358 |
| AhnLab-V3 | Trojan/Win32.Foreign.C169121 |
| Acronis | suspicious |
| McAfee | PWS-Zbot-FAXY!84D959529252 |
| MAX | malware (ai score=100) |
| VBA32 | Trojan-Ransom.Foreign |
| Panda | Trj/Dtcontx.F |
| TrendMicro-HouseCall | TROJ_SPNR.1BG313 |
| Rising | Ransom.Foreign!8.292 (CLOUD) |
| Ikarus | Trojan-Ransom.Foreign |
| MaxSecure | Trojan.Malware.5891295.susgen |
| Fortinet | W32/Generic.AC.209C1A!tr |
| AVG | Win32:Cryptor |
| Qihoo-360 | Win32/Trojan.Foreign.HwoC1ucA |
How to remove Trojan:Win32/Stoberox.B virus?
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/Stoberox.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/Stoberox.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:
