Full Answer
What is remote access trojan and how does it work?
One of the most powerful Trojans that are popularly used by the attacker or hacker is Remote Access Trojan. This is mostly used for malicious purposes. This Trojan ensures the stealthy way of accumulating data by making itself undetected.
Is there a remote administration tool for Windows?
Windows Remote Administration Tool via Telegram. Written in Python A repository full of malware samples. TechNowHorse is a RAT (Remote Administrator Trojan) Generator for Windows/Linux systems written in Python 3. RAT-el is an open source penetration test tool that allows you to take control of a windows machine.
What is a Python-based Trojan horse attack?
Python-Based Trojan Horse Attack. How to perform a python-based Trojan… | by Tommaso De Ponti | InfoSec Write-ups For the ones who didn’t know yet, a Trojan Horse Attack consists of embedding en exploit in an innocent-looking Application, or even in a document.
Can remote access Trojans be detected?
AIDE—short for Advanced Intrusion Detection Environment—is a HIDS designed specifically to focus on rootkit detection and file signature comparisons, both of which are incredibly useful for detecting APTs like Remote Access Trojans.
What can a remote access Trojan do?
Remote access trojans (RATs) are malware designed to allow an attacker to remotely control an infected computer. Once the RAT is running on a compromised system, the attacker can send commands to it and receive data back in response.
How is remote access Trojan delivered?
A remote access Trojan (RAT) is a malware program that includes a back door for administrative control over the target computer. RATs are usually downloaded invisibly with a user-requested program -- such as a game -- or sent as an email attachment.
What is a python rat?
Advanced Remote Administration tool for Windows Systems written in pure Python.
Is someone using my computer remotely?
Open your Task Manager or Activity Monitor. These utilities can help you determine what is currently running on your computer. Windows – Press Ctrl + Shift + Esc. Mac – Open the Applications folder in Finder, double-click the Utilities folder, and then double-click Activity Monitor.
How do I remove remote access?
How to Disable Remote Access in Windows 10Type “remote settings” into the Cortana search box. Select “Allow remote access to your computer”. ... Check “Don't Allow Remote Connections” to this Computer. You've now disabled remote access to your computer.
How can I find a hidden virus on my computer?
You can also head to Settings > Update & Security > Windows Security > Open Windows Security on Windows 10, or Settings > Privacy and Security > Windows Security > Open Windows Security on Windows 11. To perform an anti-malware scan, click “Virus & threat protection.” Click “Quick Scan” to scan your system for malware.
Which of the following is a remote Trojan?
Troya is a remote Trojan that works remotely for its creator.
Are PUPs malware?
Type and source of infection. Detections categorized as PUPs are not considered as malicious as other forms of malware, and may even be regarded by some as useful. Malwarebytes detects potentially unwanted programs for several reasons, including: They may have been installed without the user's consent.
Is stitch a rat?
What is Stitch? Stitch is a Python written cross platform RAT (remote administration tool) that is capable of: Command and file auto-completion.
What can hackers do with malware?
Hijack your usernames and passwords. Steal your money and open credit card and bank accounts in your name. Ruin your credit. Request new account Personal Identification Numbers (PINs) or additional credit cards.
Which of the following is a remote Trojan?
Troya is a remote Trojan that works remotely for its creator.
What are the variant of remote access Trojan?
There are a large number of Remote Access Trojans. Some are more well-known than others. SubSeven, Back Orifice, ProRat, Turkojan, and Poison-Ivy are established programs. Others, such as CyberGate, DarkComet, Optix, Shark, and VorteX Rat have a smaller distribution and utilization.
Can Windows Defender detect Trojans?
Although, Windows Defender is not capable of handling all kinds of viruses, malware, trojan, and other security threats. You can trust it for basic Firewall protection, but not beyond based on the antimalware capabilities it offers.
Overview
In this article, we will be building a python based trojan that does the following:
Introduction
Trojans are powerful because they look nice and are one of the foremost candidates of evading suspicion. Once run, they get about their malicious intent while looking perfectly fine to the attacker. More so, since targets (especially developers) are usually not suspicious of grabbing open-source/packages code and running it.
Server end
The idea is to build a server that automatically pushes code to the remote end. It will be later used to update code in real-time, transfer files, commands, and a lot more. All we need to do is to configure a HTTP server capable of handling POST and GET.
Stage I execution
Our good code serves to load a simple downloader.py to a specified directory and execute it. Now it is mainly up to downloader.py to handle everything else. As a starter, we want a way for downloader.py to handle these things:
Stage II execution
Now that a general framework for pushing remote code is up and running, now is the time for writing few exploits. You can be creative with it. I wasn’t and came up with two ideas:
Sample run
While the server up and running, move both text files and both exploits to the server and change status.txt to 1 and 0 (implying update in files but downloader.py need not be updated, which in turn implies update and run other files which consequently runs our exploits).
Privilege transfer
The most interesting tasks require root access. While there are complex mechanisms for privilege escalation, we have a slight advantage here: child of a sudo process has root access.
Does an attacker need Internet access?
Of course — an attacker needs the infected workstation has Internet access. But I think it’s not a big deal for some reasons.
Does active process create a temporary Python file?
Moreover, we noticed the active process creates a number of temporary python files — we can use this knowledge further, during the investigation process.
Can you compile a Python code into an exe?
Almost all of these projects use a Python code. So, anyone can compile a python code to .exe using tools like pyinstaller or kind of this.
Python-Based Trojan Horse Attack
For the ones who didn’t know yet, a Trojan Horse Attack consists of embedding en exploit in an innocent-looking Application, or even in a document. As you might have guessed today we will embed a backdoor into a Kivy-made GUI. This attack is quite simple, the only thing you need to know is just some python and networking basics. Let us get started!
Talk is Cheap, Show me the code
Now it Is the moment to code our Trojan. Basically, we’ll organize using a function (a malicious one), and a class (the GUI). Such a simple code.
What is Pyvil RAT?
According to researchers at Cybereason, PyVil RAT enables the attackers to exfiltrate data, perform keylogging and take screenshots, and can roll out secondary credential-harvesting tools such as LaZagne (an open source application used to retrieve passwords stored on a local computer).
What is Pyvil malware?
The Evilnum group, which specializes in targeting financial technology companies, has debuted a new tool: A Python-based remote access trojan (RAT), dubbed PyVil. The malware’s emergence dovetails with a change in the chain of infection and an expansion of infrastructure for the APT.
What is py2exe pyvil?
PyVil RAT was compiled with py2exe, which is a Python extension which converts Python scripts into Microsoft Windows executables. This gives the RAT the capability to download new modules to expand functionality.
Does Evilnum have a pyvil?
Evilnum has debuted other new tricks in tandem with rolling out PyVil RAT, the researchers noted. For instance, the infection chain has changed to include a multi-process delivery routine for the payload – as opposed to relying on a first-stage JavaScript Trojan with backdoor capabilities to establish an initial foothold on a target.
Does Pyvil have a keylogger?
Cybereason found that PyVil RAT has a host of functionality commands, including: Act as a keylogger; run CMD commands; take screenshots; drop and upload other Python scripts and executables; open an SSH shell; and collect information such as the antivirus products installed on the machine, Chrome version and which USB devices are connected. During Cybereason’s analysis, PyVil RAT also received from the C2 a custom version of LaZagne, which the Evilnum group has used in the past.
Overview
Introduction
- Trojans are powerful because they look nice and are one of the foremost candidates of evading suspicion. Once run, they get about their malicious intent while looking perfectly fine to the attacker. More so, since targets (especially developers) are usually not suspicious of grabbing open-source/packages code and running it. It might be a good entry point for our exploit.
The ‘Good’ Code
- The good code is simple. It does what the target intends it to do. It might range across a variety of things and span a whole package; the bigger the codebase, the subtler it is to spot activity. We’ll skip that part and write a simple code that prints something. To the target, this script should do what it is meant to (as in printing a simple line in our case) and exit peacefully. Apart from it, the …
Server End
- The idea is to build a server that automatically pushes code to the remote end. It will be later used to update code in real-time, transfer files, commands, and a lot more. All we need to do is to configure a HTTP server capable of handling POST and GET. A HTTPServer in python runs on two pieces of information: where to put it up and what to do on interaction. The former part is handle…
Stage I Execution
- Our good code serves to load a simple downloader.py to a specified directory and execute it. Now it is mainly up to downloader.py to handle everything else. As a starter, we want a way for downloader.pyto handle these things: 1. Know when files at the server end have been updated. 2. Know when code for downloader.pyitself has been updated. 3. Evade all signals possible (not ev…
Sample Run
- status.txttill now is set as: Now update some part of the downloader.py. I added a simple print statement before the check_status() call in the while loop. Then set the status.txt as 1 and 1. Wait for GETrequest. Here’s the result:
Stage II Execution
- Now that a general framework for pushing remote code is up and running, now is the time for writing few exploits. You can be creative with it. I wasn’t and came up with two ideas: 1. Running a set of commands 2. Querying some directory (recursively reading all the files in the subdirectories and returning to the target) We predefine commands.txt to be the standard for the attacker’s sto…
Privilege Transfer
- The most interesting tasks require root access. While there are complex mechanisms for privilege escalation, we have a slight advantage here: child of a sudo process has root access. All you need is to convince the target to run good.pyas root. This should not be difficult; users are now and then giving root access to code that just doesn’t run without root access (like any Scapy code). L…
Conclusion
- The only thing left is to build functionality to self-hide. It is a broad topic and studying rootkits might be a good way to start thinking about that. Have a good day!