STARPWN-2026-Writeup

STARPWN CTF 2026 Writeup

Write-ups and analysis scripts for STARPWN CTF 2026 challenges.

Since I did not participate in the on-site event, this repository excludes challenges that required physical attendance or venue-specific interaction. The goal of this repository is to document the solving process and provide reproducible analyses for anyone interested in CTFs, especially satellite, RF, and embedded security challenges.

Most write-ups include not only the final solution but also the analysis scripts and tools used during the solving process, allowing the results to be reproduced.

Starpwn

Categories

Starpwn

Environment

Each challenge directory contains:

Summary

Category Challenges
Communication & RF 6
Forensics 2
Ground Operations 2
Misc 7
Physical 1
Space Communication & RF 5
Space Operations 4
Total 27

Challenges

All challenges started at 500 points, and the point values ​​listed below are based on the competition’s closing date.

📡 Communication & RF

# Challenge Points Solves Flag
1 Connect the dots 477 123 starpwn{Beyond_Visual_Line_Of_Sight}
2 Deadly Parade 488 88 starpwn{Echo_Trail_Park}
3 Is that static…moving? 500 16 STARPWN{sn0wf4ll_1n_$umm3r}
4 Nice day for fishing 500 25 STARPWN.3_SP33DY_MMS1S.
5 One to Rule Them All 499 32 starpwn{machines_never_pledged_to_be_allegiant}
6 Walk the False Line 500 5 starpwn{autonomous_until_someone_speaks_louder}

🔍 Forensics

# Challenge Points Solves Flag
1 Follow the leak 451 177 flag{50rry_W15h_W3_C0uld_G0_70_7h3_M00n_70g37h3r}
2 Silent Horizon 500 25 STARPWN{450:SAT1208SAT1108SAT1307SAT1207!}

🖥️ Ground Operations

# Challenge Points Solves Flag
1 Space Infiltrations 483 105 STARPWN{9de48ee5d75bd14b45e48948f5b74914}
2 Vanguard Orbital Security 480 115 STARPWN{k1ck_1091c_70_7h3_cu28_4nd_d0_7h3_1mp0551813}

🎲 Misc

# Challenge Points Solves Flag
1 DEAD//LIGHT 500 25 STARPWN{DEAD_SIGN_RETURNS}
2 Oversized Downlink 450 178 STARPWN{lsb_st3g0_1n_th3_d0wnl1nk_ch4nnel}
3 Strange Holos 1 478 113 NERF HERDER
4 Strange Holos 2 488 90 BOLDLY GO
5 Strange Holos 3 443 191 Bow ties are cool!
6 Strange Holos 4 470 140 I AM SORRY DAVE, I CANT DO THAT
7 Strange Holos 5 442 193 so long and thanks for all the phish

📻 Physical

# Challenge Points Solves Flag
1 Rogue Ground Station 500 2 flag(CAFE0000,DF400000}

🛰️ Space Communication & RF

# Challenge Points Solves Flag
1 Beaconing from above 431 209 STARPWN{B34C0N_D3C0D3D_V14_R4D10}
2 Glittercity OST1 497 48 STARPWN{Syn7h_v1be$_fr0m_0rb1t}
3 Glittercity OST2 500 17 STARPWN{THIS_WAS_OFF_TOO_MUCH}
4 Silent Beacon 454 171 STARPWN{h0us3k33p1ng_4n0m4ly}
5 Starry hacks 490 83 STARPWN{7h20u9h_v1c702y_my_ch41n5_423_820k3n}

🚀 Space Operations

# Challenge Points Solves Flag
1 Orbital Integrity 421 224 STARPWN{2911565936}
2 Time to Intercept 473 132 STARPWN{h0hm4nn_tr4nsf3r_1nt3rc3pt}
3 Time to Intercept -V2 494 65 STARPWN{dont_print_th3_answer_}
4 Tumbling Through Space 471 137 STARPWN{d3tumbl3_m4st3r_sp4c3_0p5}