> For the complete documentation index, see [llms.txt](https://writeups.adityadindi.com/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://writeups.adityadindi.com/tryhackme/walkthroughs-easy/linux-backdoors.md).

# Linux Backdoors

![](https://1569822153-files.gitbook.io/~/files/v0/b/gitbook-legacy-files/o/assets%2F-Ma_-L-NUkJ1mxbddZG2%2F-Md53PfNQRm6jxyWs54_%2F-Md53X1r3W8GPl7vrFxs%2Fimage.png?alt=media\&token=27973265-3a82-4951-b819-ae2089474a40)

## SSH Backdoors

![](https://1569822153-files.gitbook.io/~/files/v0/b/gitbook-legacy-files/o/assets%2F-Ma_-L-NUkJ1mxbddZG2%2F-Md53PfNQRm6jxyWs54_%2F-Md53yZOE9fzR_Nf0tgl%2Fimage.png?alt=media\&token=eadc775f-fc9d-4105-893f-5adfabcb0720)

![](https://1569822153-files.gitbook.io/~/files/v0/b/gitbook-legacy-files/o/assets%2F-Ma_-L-NUkJ1mxbddZG2%2F-Md53PfNQRm6jxyWs54_%2F-Md54GmHJgft4LxaMxzk%2Fimage.png?alt=media\&token=a3d0ef67-9a4f-4884-be29-43dc58b5bcdb)

## PHP Backdoors

![](https://1569822153-files.gitbook.io/~/files/v0/b/gitbook-legacy-files/o/assets%2F-Ma_-L-NUkJ1mxbddZG2%2F-Md53PfNQRm6jxyWs54_%2F-Md54N7junEDDu_yeOxN%2Fimage.png?alt=media\&token=a150b6e8-a239-48df-82ea-7f92609005f6)

## Cronjob Backdoors

![](https://1569822153-files.gitbook.io/~/files/v0/b/gitbook-legacy-files/o/assets%2F-Ma_-L-NUkJ1mxbddZG2%2F-Md53PfNQRm6jxyWs54_%2F-Md54hPRKyjIb-8p53s-%2Fimage.png?alt=media\&token=8e39f984-13bf-4773-a3b1-fc71cfda6aba)

![](https://1569822153-files.gitbook.io/~/files/v0/b/gitbook-legacy-files/o/assets%2F-Ma_-L-NUkJ1mxbddZG2%2F-Md53PfNQRm6jxyWs54_%2F-Md54umT0kUzeDtFaGPG%2Fimage.png?alt=media\&token=5f5f324c-cd83-48da-879d-fab36b43e868)

![](https://1569822153-files.gitbook.io/~/files/v0/b/gitbook-legacy-files/o/assets%2F-Ma_-L-NUkJ1mxbddZG2%2F-Md53PfNQRm6jxyWs54_%2F-Md550U9GSKaIuHijUIw%2Fimage.png?alt=media\&token=73cd97b0-2c7f-434b-ab97-6b56b663ccaf)

## .bashrc Backdoors

![](https://1569822153-files.gitbook.io/~/files/v0/b/gitbook-legacy-files/o/assets%2F-Ma_-L-NUkJ1mxbddZG2%2F-Md53PfNQRm6jxyWs54_%2F-Md5568LgodVBXKnQdKy%2Fimage.png?alt=media\&token=1756472c-5b56-4a1a-b1a1-08eb96b62a1d)

## pam\_uniz.so Backdoors

![](https://1569822153-files.gitbook.io/~/files/v0/b/gitbook-legacy-files/o/assets%2F-Ma_-L-NUkJ1mxbddZG2%2F-Md53PfNQRm6jxyWs54_%2F-Md58kNAwBPM3EmgTcF0%2Fimage.png?alt=media\&token=3de592cc-d46c-4bc5-ad90-9df78d0e498f)

![](https://1569822153-files.gitbook.io/~/files/v0/b/gitbook-legacy-files/o/assets%2F-Ma_-L-NUkJ1mxbddZG2%2F-Md53PfNQRm6jxyWs54_%2F-Md58tqeu7TZKJv_0C6e%2Fimage.png?alt=media\&token=008ba0b4-a41f-446d-9761-6fb53a7e97aa)