TGViewer
CatOps CatOps @catops · 5.07K subscribers
Post #2217 4.86K
A short article on how to infect SSH public keys.

Is it a serious threat - no, not really. However, this article describes a rather unknown feature of SSH as well as serves as a reminder that using keys for SSH access has its flaws.

#security #ssh
The Hacker's Choice Infecting SSH Public Keys with backdoors In this article, you will learn how to add a backdoor to the SSH Public Key. The backdoor will execute whenever the user logs in. The backdoor hides as an unreadable long hex-string inside ~/.ssh/authorized_keys or ~/.ssh/id_*.pub. The source is avai...
  • 🤔 5
  • 😁 3
  • 🤡 2
  • 👍 1
  • 🏆 1
Open in Telegram All posts from @catops
More from @catops
  1. Oct 8, 2026I’m going on a vacation, which means that I likely won’t post at all or post something ver…
  2. Oct 6, 2026A colleague of mine wrote an article about data migrations. Handling data migrations witho…
  3. Oct 1, 2026​​I traded my personal information for this report, so you don’t have to! DataDog presents…
  4. Sep 29, 2026A Cybersecurity books bundle by O’Reilly on Humble Bundle. The bundle is fresh and is stil…
  5. Sep 28, 2026​​For today’s Donations Monday, I’d like to remind you about a fundraiser for a pickup tru…
  6. Sep 26, 2026Here’s Datadog’s take on the increased load on CI. In this article they explain how their…
Threads Profile ViewerView any public Threads profile without an account.Open ThreadLook →Writing with AI? Make it sound human.Metric37 rewrites AI drafts so they read naturally. Free AI detector, 1,500 words free.Try Metric37 →