Home | b4r

b4r

/ˈbar/ • nouns

CTF with @Try4gain. Interested in Reversing, Forensics, Blockchain, Web Exploitation and Linux (i use arch btw).

Besides security shit, I enjoy playing a pixel art games and watching anime.

Latest posts

how one cve turned into multiple csirt.go.id certs

one vulnerability. multiple targets. multiple certificates.

b b4r
March 10, 2026
2 min read

Web Exploitation Bug Bounty
aseng forensic challs always give me a new insight

upsolved it tho :p

b b4r
February 17, 2026
6 min read

forensics ctf disk-image pcap crypto reverse
the type of an ordinary ransomware challs

a writeup of ara7ctf 2026 for/horseman

b b4r
February 7, 2026
4 min read

digital forensic reverse engineering ransomware ctf
LKS internal selection is very fun hahaha...

a complete write up of insanetemple for my beloved juniors

b b4r
January 30, 2026
3 min read

web Exploitation ctf
the first chall about CVE-2025-5518 i've solved

it is easy tho

b b4r
December 30, 2025
6 min read

vulnerability cve web exploitation ctf
reversing linux kernel is easy (?)

a writeup of astroctf 2025 rev/ghost

b b4r
December 19, 2025
1 min read

reverse engineering linux kernel ctf

See all posts →