Links from a while ago because some crash caught my eye:
Archive for the ‘Software Development’ Category
Some links on Windows kernel APIs
Posted by jpluimers on 2024/12/10
Posted in Development, Software Development, Windows Development | Leave a Comment »
Why does HTML think “chucknorris” is a color?
Posted by jpluimers on 2024/12/09
From a long time ago:
- [Archive.is] Bill the Lizard on Twitter: “Why does HTML think “chucknorris” is a color?
stackoverflow.com/q/8318911/1288“ - [Wayback/Archive.is] browser – Why does HTML think “chucknorris” is a color? – Stack Overflow
–jeroen
Share this:
Posted in Color (software development), Development, Software Development, Web Development | Leave a Comment »
Save the Environment (Variable)
Posted by jpluimers on 2024/12/05
For my link archive as this is environment variable override trick to override DLL loading is not just limited to executables shipping with Windows, but also with other products (likely: virus scanners that run privileged); another alternative is running a local process serving the WebDAV protocol.
Share this:
Posted in Development, Power User, Security, Software Development, Windows, Windows 10, Windows 11, Windows Development | Tagged: DEFCON30 | Leave a Comment »
IMAGE_FILE_HEADER (winnt.h) – Win32 apps | Microsoft Learn: IMAGE_FILE_UP_SYSTEM_ONLY flag (not what you think it means)
Posted by jpluimers on 2024/12/04
Need to write a tool for this that sets/clears the ………… flag in the PE .EXE header.
Officially it is for this:
[Wayback/Archive] IMAGE_FILE_HEADER (winnt.h) – Win32 apps | Microsoft Learn
- IMAGE_FILE_UP_SYSTEM_ONLY
- 0x4000
The file should be run only on a uniprocessor computer.
In practice, this sets the affinity to 1 single CPU core (which is kind of random, and could change each time you start the executable).
This is ideal for code that is known for causing trouble executing on multiple cores, or – more importantly – to disallow core-switching for programs that give best performance when executed on a single core.
Via: [Wayback/Archive] Thread by @0gtweet on Thread Reader App – Did you ever hear about IMAGE_FILE_UP_SYSTEM_ONLY flag in NtHeader->FileHeader->Characteristics of an exe file?
Share this:
Posted in Development, Software Development, Windows Development | Leave a Comment »
Hijack Libs
Posted by jpluimers on 2024/12/04
Interesting for both red teams and blue teams: [Wayback/Archive] Hijack Libs
This project provides an curated list of DLL Hijacking candidates. A mapping between DLLs and vulnerable executables is kept and can be searched via this website. Additionally, further metadata such as resources provide more context.
Share this:
Posted in Blue team, Development, Power User, Red team, Security, Software Development, Windows Development | Leave a Comment »
Privacyverklaring | Mazda
Posted by jpluimers on 2024/12/03
Het gebruik van Bitly is netjes vermeld: [Wayback/Archive] Privacyverklaring | Mazda
Bitly: URL-verkortingsdienst en linkbeheerplatform; dienstverlener: Bitly, Inc, 139 Fifth Avenue, 5th Floor, New York, NY 10010, USA; website: https://bitly.com; privacybeleid: https://bitly.com/pages/privacy.
Dat is belangrijk, want URL-shorteners zijn een risico op bijvoorbeeld:
- De daadwerkelijke doel-URL is niet op voorhand zichtbaar of duidelijk
- De doel-URL kan achteraf worden gewijzigd, dus waar je nu op uitkomt is niet noodzakelijkerwijs waar je in de toekomst op uitkomt
- Er kan user-tracking plaatsvinden op het niveau van de URL-shortener
- Ze worden veel gebruikt om malware te verpreiden (juist ook omdat de doel-URL makkelijk aanpasbaar is)
- In veel omgevingen worden URL-shorteners om bovenstaande redenen geblokkeerd
--jeroen
Share this:
Posted in Development, GDPR/DS-GVO/AVG, LifeHacker, Power User, Privacy, Web Development | Leave a Comment »
Is it Pokémon or Big Data?
Posted by jpluimers on 2024/12/03
Fron a while ago but still relevant [Wayback/Archive] Is it Pokémon or Big Data?.
It is a cool experiment to test your own knowledge or for fun to assess recruiters or candidates (;
And it is open source too:
Share this:
Posted in Cloud, Cloud Development, Conference Topics, Conferences, Development, Event, Fun, Infrastructure, LifeHacker, PokemonGo, Power User, Software Development | Tagged: bigdata | Leave a Comment »
IPv4 subnet/CIDR table from OccupytheWeb on Twitter: “Network Basics for Hackers: Subnetting, Subnet Masks and CIDR Notation …”
Posted by jpluimers on 2024/11/27
I wrote about programs and scripts doing IPv4 subnet calculation, but sometimes it is easier to have a table at hand, so here is the one I found at [Wayback/Archive] OccupytheWeb on Twitter: “Network Basics for Hackers: Subnetting, Subnet Masks and CIDR Notation #networks #networkbasics #subnetting #infosec #networks4hackers #cyberwarrior #cyberwarrior #networkbasics #networkbasics subnet”
Notes:
- it is by far original, as a quick image search revealed lots of other sources, for instance the 2011 post [Wayback/Archive] Subnet Mask Quick Reference | Academic PCs Blog
- there is a much better table below adapted from Classless Inter-Domain Routing: IPv4 CIDR blocks – Wikipedia
Share this:
Posted in Development, Hardware, Internet, IPv4, Network-and-equipment, Power User, Scripting, Software Development | Tagged: cyberwarrior, infosec, networkbasics, networks, networks4hackers, subnetting | Leave a Comment »
ValueError: invalid literal for int() with base 10: ” by tzwickl · Pull Request #768 · sivel/speedtest-cli
Posted by jpluimers on 2024/11/22
Somehow this post missed the schedule and for a long time I forgot to properly checked for “missed schedule” posts.
Back in 2021, suddenly systems with speedtest-cli threw a [Wayback/Archive] ValueError: invalid literal for int() with base 10: ” by tzwickl · Pull Request #768 · sivel/speedtest-cli after accessing the speedtest.net servers.
Around 7-8 April, 2021 the speedtest.net/speedtest-config.php XML configuration suddenly had changed the value for the XPath expression /settings/server-config/@ignoreids from being a list of integers into empty, see the archived files below.
Share this:
Posted in Development, JavaScript/ECMAScript, Python, Scripting, Software Development, XML/XSD, XPath | Tagged: 768, 769 | Leave a Comment »
Reminder to self: write Bookmarklet to assemble URL for Amazon Shipping ID
Posted by jpluimers on 2024/11/21
Example URL: [Wayback/Archive] track.amazon.com/tracking/NL2017506177
Via: [Wayback/Archive] Amazon Shipping
Related: Read the rest of this entry »
Share this:
Posted in Bookmarklet, Development, JavaScript/ECMAScript, Scripting, Software Development, Web Browsers | Leave a Comment »
The Wiert Corner - irregular stream of stuff 