Hacking on Medium
Hacker101: Postbook

https://cdn-images-1.medium.com/max/1908/1*nrOh0J6mPZRiQhvByDED2Q.png
Facebook is well known for having security issues like data leaks, hacks etc. quite often. “Postbook” is a CTF on Hacker101 recreating the…

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Hacking on Medium
What the hell is TOR? (Unknown Dark Web)

https://cdn-images-1.medium.com/max/1280/0*zs4aONZBswK4FASz
Tor Browser definition may need to be…

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Hashdb-Ida - HashDB API Hash Lookup Plugin For IDA Pro
http://www.kitploit.com/2021/11/hashdb-ida-hashdb-api-hash-lookup.html

HashDB IDA Plugin
Malware string hash lookup plugin (https://www.kitploit.com/search/label/Plugin) for IDA Pro. This plugin connects to the OALABS HashDB Lookup Service (https://hashdb.openanalysis.net/).
Adding New Hash Algorithms
The hash algorithm database is open source and new algorithms can be added on GitHub here (https://github.com/OALabs/hashdb). Pull requests are mostly automated (https://www.kitploit.com/search/label/Automated) and as long as our automated tests pass the new algorithm will be usable on HashDB within minutes.
Using HashDB
HashDB can be used to look up strings that have been hashed in malware (https://www.kitploit.com/search/label/Malware) by right-clicking on the hash constant in the IDA disassembly view and launching the HashDB Lookup client.
Settings
Before the plugin can be used to look up hashes (https://www.kitploit.com/search/label/Hashes) the HashDB settings must be configured. The settings window can be launched from the plugins menu Edit->Plugins->HashDB.

 
Hash Algorithms
Click Refresh Algorithms to pull a list of supported hash algorithms from the HashDB API, then select the algorithm used in the malware you are analyzing.
Optional XOR
There is also an option to enable XOR with each hash value as this is a common technique used by malware authors to further obfuscate hashes.
API URL
The default API URL for the HashDB Lookup Service is https://hashdb.openanalysis.net/. If you are using your own internal server this URL can be changed to point to your server.
Enum Name
When a new hash is identified by HashDB the hash and its associated string are added to an enum in IDA. This enum can then be used to convert hash constants in IDA to their corresponding enum name. The enum name is configurable from the settings in the event that there is a conflict with an existing enum.
Hash Lookup
Once the plugin settings have been configured you can right-click on any constant in the IDA disassembly window and look up the constant as a hash. The right-click also provides a quick way to set the XOR value if needed.

Bulk Import
If a hash is part of a module a prompt will ask if you want to import all the hashes from that module. This is a quick way to pull hashes in bulk. For example, if one of the hashes identified is Sleep from the kernel32 module, HashDB can then pull all the hashed exports from kernel32.

 
Algorithm Search
HashDB also includes a basic algorithm search that will attempt to identify the hash algorithm based on a hash value. The search will return all algorithms that contain the hash value, it is up to the analyst to decide which (if any) algorithm is correct. To use this functionality right-click on the hash constant and select HashDB Hunt Algorithm.

  All algorithms that contain this hash will be displayed in a chooser box. The chooser box can be used to directly select the algorithm for HashDB to use. If Cancel is selected no algorithm will be selected.

Dynamic Import Address Table Hash Scanning
Instead of resolving API hashes individually (inline in code) some malware developers will create a block of import hashes in memory. These hashes are then all resolved within a single function creating a dynamic (https://www.kitploit.com/search/label/Dynamic) import address table which is later referenced in the code. In these scenarios the HashDB Scan IAT function can be used.

  Simply select the import hash block, right-click and choose HashDB Scan IAT. HashDB will attempt to resolve each individual integer type (DWORD/QWORD) in the selected range.
Installing HashDB
Before using the plugin you must install the python requests module in your IDA environment. The simplest way to do this is to use pip from a shell outside of IDA.
pip install requests Once you have the requests module installed simply copy the latest release of hashdb.py into your IDA plugins directory and you are ready to start looking up hashes!
Compatibility Issues The HashDB plugin has been developed for use with the IDA 7+ and Python 3 it is not backwards compatible.

Download Hashdb-Ida (https://github.com/OALabs/hashdb-ida)

Hashdb-Ida - HashDB API Hash Lookup Plugin For IDA Pro

HashDB IDA Plugin Malware string hash lookup plugin for IDA Pro. This plugin connects to the OALABS HashDB Lookup Service.Adding New Hash Algorithms The hash algorithm database is open source and new algorithms can be added on GitHub here. Pull requests are mostly automated and as long as our automated tests pass the new algorithm will be usable on HashDB within minutes. Using HashDB HashDB can be used to look up strings that have been hashed in malware by right-clicking on the hash constant in the IDA disassembly view and launching the HashDB Lookup client. Settings Before the plugin can be used to look up hashes the HashDB settings must be configured. The settings window can be launched from the plugins menu Edit->Plugins->HashDB. Hash Algorithms Click Refresh Algorithms to pull a list of supported hash algorithms from the HashDB API, then select the algorithm used in the malware you are analyzing. Optional XOR There is also an option to enable XOR with each hash value as this is a common technique used by malware authors to further obfuscate hashes. API URL The default API URL for the HashDB Lookup Service is https://hashdb.openanalysis.net/. If you are using your own internal server this URL can be changed to point to your server. Enum Name When a new hash is identified by HashDB the hash and its associated string are added to an enum in IDA. This enum can then be used to convert hash constants in IDA to their corresponding enum name. The enum name is configurable from the settings in the event that there is a conflict with an existing enum. Hash Lookup Once the plugin settings have been configured you can right-click on any constant in the IDA disassembly window and look up the constant as a hash. The right-click also provides a quick way to set the XOR value if needed. Bulk Import If a hash is part of a module a prompt will ask if you want to import all the hashes from that module. This is a quick way to pull hashes in bulk. For example, if one of the hashes identified is Sleep from the kernel32 module, HashDB can then pull all the hashed exports from kernel32. Algorithm Search HashDB also includes a basic algorithm search that will attempt to identify the hash algorithm based on a hash value. The search will return all algorithms that contain the hash value, it is up to the analyst to decide which (if any) algorithm is correct. To use this functionality right-click on the hash constant and select HashDB Hunt Algorithm. All algorithms that contain this hash will be displayed in a chooser box. The chooser box can be used to directly select the algorithm for HashDB to use. If Cancel is selected no algorithm will be selected. Dynamic Import Address Table Hash Scanning Instead of resolving API hashes individually (inline in code) some malware developers will create a block of import hashes in memory. These hashes are then all resolved within a single function creating a dynamic import address table which is later referenced in the code. In these scenarios the HashDB Scan IAT function can be used. Simply select the import hash block, right-click and choose HashDB Scan IAT. HashDB will attempt to resolve each individual integer type (DWORD/QWORD) in the selected range. Installing HashDB Before using the plugin you must install the python requests module in your IDA environment. The simplest way to do this is to use pip from a shell outside of IDA. pip install requests Once you have the requests module installed simply copy the latest release of hashdb.py into your IDA plugins directory and you are ready to start looking up hashes! Compatibility Issues The HashDB plugin has been developed for use with the IDA 7+ and Python 3 it is not backwards compatible. Download Hashdb-Ida
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hacking: security in practice
Resources to learn more about Side-channel attacks?

For those who don't know here is a neat description of it from the wikipedia:

"In computer security, a side-channel attack is any attack based on information gained from the implementation of a computer system, rather than weaknesses in the implemented algorithm itself (e.g. cryptanalysis and software bugs). Timing information, power consumption, electromagnetic leaks or even sound can provide an extra source of information, which can be exploited."

It looks like a very fascinating branch of studies. I mean break and explore vulnerabilities from radio, electromagnetic leaks, audio, and other things are super groovy.

Also, I am particularly curious about it because I plan to include this as one of the major plot points in a book that I am planing inspired by Gibson, Stephenson, Watts, and Egan. Resumidely my idea is to write about a hacker group operating in the middle of the decade of 2030 composed of transhumanists, occultists, biohackers, and more other unique people. Who decide to migrate from AI-powered spear-phishing and identity theft to other forms of attacks like side-channel vectors. So I am looking to resources to learn more about this type of attack to satisfy my intellectual curiosity, thanks in advance.

submitted by /u/Pseudo-Starwonders
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hacking: security in practice
Kortext - Download as PDF

Apologies - not quite sure where to ask this. I have a university EBook on Kortext, it only lets you download 10 pages before paying for it. Is there any way to rip the data from the website? I believe it's really well known, so expect someone has already figured this out?

submitted by /u/Markibuhr
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