picoCTF 2022: Crypto – basic_mod1

Ulli Weichert/ März 30, 2022/ IT-Security, Write-Ups/ 0Kommentare

basic-mod1 Description We found this weird message being passed around on the servers, we think we have a working decrpytion scheme. Download the message here. Take each number mod 37 and map it to the following character set: 0-25 is the alphabet (uppercase), 26-35 are the decimal digits, and 36 is an underscore. Wrap your decrypted message in the picoCTF

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DamCTF 2021: malware – sneaky-script / Writeup

Christian Leipold/ November 11, 2021/ IT-Security, Write-Ups/ 0Kommentare

DamCTF 2021 malware/sneaky-script (forensics/rev) captainGeech We recovered a malicious script from a victim environment. Can you figure out what it did and if any sensitive information was exfiltrated? We were able to export some PCAP data from their environment as well. Downloads files.zip Given was a pcap file and a bash script. -rwxr-xr-x 1 root root 516 5. Nov 05:35

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