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About ptrstr

Username ptrstr
Country Canada
Member since 2021-05-23
Coins 0
Points 499
Write-up with special mention 0
Ranking 92 / 54096
Challenges completed 134 / 419

Challenge Write-up with special mention
Validation date Challenge Number of points
2026-03-30 16:42:57
Web
Malicious upload
2
2026-03-30 12:03:32
Web
PHP Fairy
2
2026-03-30 11:57:33
SysAdmin Linux
SysAdmin Part 8
4
2026-03-30 11:47:35
SysAdmin Linux
SysAdmin Part 7
4
2026-03-30 07:56:08
Pwnage Linux
Friendly race
5
2026-03-29 19:46:50
Pwnage Linux
Sometime there is no buffer overflow
4
2026-03-28 19:37:25
Pwnage Linux
Can you get the service password
4
2026-03-28 07:48:52
Pwnage Linux
Level1 Pwnage Linux x86_64
3
2026-03-26 19:20:21
Pwnage Linux
The Vault
3
2026-03-26 19:07:53
Pwnage Linux
Remote Auth
2
2026-03-26 14:11:14
Pwnage Linux
Level4 Pwnage Linux Level Up
5
2026-03-26 13:32:57
Pwnage Linux
Level3 Pwnage Linux Level Up
3
2026-03-26 13:32:41
Pwnage Linux
Level2 Pwnage Linux Level Up
2
2026-03-26 09:07:39
Pwnage Linux
Level1 Pwnage Linux Level Up
1
2026-03-25 14:56:11
Coding Challenges
Find the right word
7
2026-03-25 12:52:20
NorthSec 2023
We Call it Spring (4/4)
2
2026-03-25 12:51:54
NorthSec 2023
We Call it Spring (3/4)
5
2026-03-25 11:03:38
NorthSec 2023
We Call it Spring (2/4)
1
2026-03-25 11:03:22
NorthSec 2023
We Call it Spring (1/4)
1
2026-03-24 18:44:09
Forensics
Meat Loaf
2
2026-03-24 17:15:43
Malware Analysis
Just Another MBR Ransomware
8
2026-03-24 09:10:53
Malware Analysis
Capture 1 Part 1
1
2026-03-24 09:05:38
Malware Analysis
APT 1337
4
2026-03-23 15:32:18
NorthSec 2024
Appendix System
2
2026-03-23 15:08:30
NorthSec 2024
Linguistic Memory System
5
2026-03-23 12:10:31
NorthSec 2024
Photographic Memory System (2/2)
3
2026-03-23 11:24:14
NorthSec 2024
Photographic Memory System (1/2)
3
2026-03-22 14:10:19
Reverse Engineering
Keygen time again
10
2026-03-20 13:16:56
Reverse Engineering
The Matrix
9
2026-03-20 12:07:56
Reverse Engineering
Rebate As A Service
8
2026-03-19 17:13:25
Reverse Engineering
You're not welcome
8
2026-03-19 09:51:07
Reverse Engineering
WASM Part 2
8
2026-03-18 10:06:44
Reverse Engineering
WASM Part 1
5
2026-03-18 07:51:02
Reverse Engineering
Need a client
6
2026-03-18 07:29:51
Reverse Engineering
Pwndr3 Authenticator
5
2026-03-17 09:27:39
NorthSec 2023
Corporate Cafeteria Menu
6
2026-03-16 12:13:51
NorthSec 2021
Scammed again
3
2026-03-16 11:43:37
NorthSec 2021
Crapto Century
3
2026-03-16 10:03:20
The NC8 Reverse Engineering Track
NC8 MAINFRAME MANAGEMENT INTERFACE Part 4
15
2026-03-13 21:59:15
The NC8 Reverse Engineering Track
NC8 MAINFRAME MANAGEMENT INTERFACE Part 2 Flag 3
10
2026-03-13 21:36:13
The NC8 Reverse Engineering Track
NC8 MAINFRAME MANAGEMENT INTERFACE Part 2 Flag 2
7
2026-03-13 15:48:33
The NC8 Reverse Engineering Track
NC8 MAINFRAME MANAGEMENT INTERFACE Part 2 Flag 1
3
2026-03-12 17:59:57
The NC8 Reverse Engineering Track
NC8 MAINFRAME MANAGEMENT INTERFACE Part 1
7
2026-03-10 10:49:29
Jail Escaping
Bash Jail 4
4
2026-03-05 21:47:06
Shellcoding
Linux x64 shellcoding level 4
8
2026-03-05 21:30:28
Shellcoding
Linux x64 shellcoding level 3
6
2026-03-05 13:25:59
Shellcoding
Linux x64 shellcoding level 2
4
2026-03-05 13:13:03
Shellcoding
Basics of Linux x64 shellcoding
2
2026-03-01 13:17:09
NorthSec 2023
Orchestry (1/3)
1
2026-03-01 13:05:43
NorthSec 2022
Stock Options Portal
6
2026-02-28 18:21:27
NorthSec 2021
The Cabal
2
2026-02-28 17:43:36
NorthSec 2021
Reading Through the Cloud
4
2026-02-27 23:22:16
Web
Lotto 8/33
11
2026-02-26 15:46:24
Jail Escaping
Bash Jail 3
3
2026-02-26 15:35:19
Jail Escaping
Bash Jail 2
2
2026-02-26 15:29:47
Jail Escaping
Bash Jail 1
1
2026-02-26 15:25:01
Jail Escaping
PHP Jail 5
6
2026-02-26 14:44:01
Jail Escaping
PHP Jail 4
4
2026-02-26 14:26:18
Jail Escaping
PHP Jail 3
3
2026-02-26 13:52:31
Jail Escaping
PHP Jail 2
2
2026-02-26 13:38:21
Jail Escaping
PHP Jail 1
1
2026-02-26 13:32:47
Jail Escaping
PyJail 3
6
2026-02-25 16:56:14
Jail Escaping
PyJail 2
5
2026-02-24 12:12:33
Jail Escaping
C Jail 5
7
2026-02-24 11:41:06
Jail Escaping
C Jail 4
5
2026-02-24 07:49:50
Jail Escaping
C Jail 3
3
2026-02-24 00:18:41
Jail Escaping
C Jail 2
2
2026-02-24 00:17:33
Jail Escaping
C Jail 1
1
2026-02-23 23:26:53
NorthSec 2025
Motor Sensors - Controller (1/4)
3
2026-02-23 18:02:03
Web
Hacking skill are optional
1
2026-02-23 15:55:53
Coding Challenges
Hash breaker
4
2026-02-23 15:52:44
Coding Challenges
Hash me reloaded
3
2026-02-23 15:49:34
Coding Challenges
Hash me please
2
2026-02-23 15:17:24
Reverse Engineering
RingZer0 Authenticator
5
2026-02-23 14:19:10
JavaScript
WTF Lol!
6
2026-02-23 13:47:41
NorthSec 2025
Disabling the camera operator (4/4)
4
2026-02-23 13:47:06
NorthSec 2025
Disabling the camera operator (2/4)
3
2026-02-23 10:31:16
NorthSec 2025
Disabling the camera operator (3/4)
4
2026-02-23 07:38:46
NorthSec 2025
Disabling the camera operator (1/4)
1
2026-02-23 06:55:03
NorthSec 2025
LED Display Controller (3/3)
3
2026-02-23 06:43:49
NorthSec 2025
LED Display Controller (2/3)
2
2026-02-22 19:39:33
NorthSec 2025
LED Display Controller (1/3)
4
2026-02-20 11:26:39
NorthSec 2025
Motor Sensors - Agent 1 (1/3)
1
2026-02-20 10:22:51
NorthSec 2025
Passenger Manifesto (2/2)
4
2026-02-20 09:26:25
NorthSec 2025
Passenger Manifesto (1/2)
5
2023-08-23 20:14:07
NorthSec 2022
Email Template (2/3)
5
2023-08-23 19:13:54
NorthSec 2022
Email Template (1/3)
2
2022-04-27 18:51:45
NorthSec 2021
Farmer Search (3/3)
4
2022-04-27 18:28:38
NorthSec 2021
Farmer Search (2/3)
2
2022-04-27 17:46:58
NorthSec 2021
Farmer Search (1/3)
3
2022-04-27 17:08:30
NorthSec 2021
Knight Portal (3/3)
5
2022-04-27 14:35:58
NorthSec 2021
Knight Portal (2/3)
2
2022-04-27 14:25:29
NorthSec 2021
Knight Portal (1/3)
2
2021-11-04 19:29:42
Web
Big Brother is watching
1
2021-11-04 19:28:49
Web
Looking for password file
1
2021-10-30 14:30:56
Jail Escaping
PyJail 1
3
2021-10-30 10:34:55
Coding Challenges
Number game
7
2021-10-30 00:08:55
Web
Gift as a Service Part 1
3
2021-06-06 22:13:43
Reverse Engineering
Flag stealer
6
2021-06-05 12:34:32
JavaScript
Why not be more secure?
5
2021-06-05 11:45:30
JavaScript
Valid key required
2
2021-06-05 11:21:12
JavaScript
Most Secure Crypto Algo
2
2021-06-01 20:51:08
Forensics
Hide my ass in my home!
2
2021-06-01 20:37:28
Exotic Data Storage
Just another login form
2
2021-06-01 20:19:18
Cryptography
Is it a secure string?
5
2021-05-26 09:08:17
Forensics
Hey Chuck where is the flag?
2
2021-05-26 09:04:10
Web
Headache
1
2021-05-25 18:48:54
SQL Injection
Thinking outside the box is the key
4
2021-05-25 18:30:24
SQL Injection
Quote of the day reloaded
5
2021-05-25 18:15:27
SQL Injection
Quote of the day
4
2021-05-25 18:06:12
Reverse Engineering
I never forget the Nintendo 64
3
2021-05-24 22:45:11
JavaScript
Why not?
2
2021-05-24 22:22:13
Coding Challenges
I hate mathematics
3
2021-05-24 22:08:57
Coding Challenges
Xor me if you can
6
2021-05-24 22:06:23
JavaScript
Then obfuscation is more secure
1
2021-05-24 22:02:19
JavaScript
Hashing is more secure
1
2021-05-24 20:15:53
Reverse Engineering
Windows x86 reversing is cool
3
2021-05-24 20:12:27
JavaScript
Client side validation is bad!
1
2021-05-24 20:11:29
Cryptography
Martian message part 3
3
2021-05-24 20:07:34
Cryptography
Some martian message
1
2021-05-24 19:38:50
SQL Injection
Login portal 2
3
2021-05-24 19:04:51
SQL Injection
Login portal 1
2
2021-05-24 18:53:39
SQL Injection
ACL rulezzz the world.
2
2021-05-24 16:21:08
SQL Injection
Most basic SQLi pattern.
1
2021-05-24 15:53:12
SQL Injection
Random Login Form
2
2021-05-24 15:28:30
Web
Looking for the flag?
3
2021-05-24 14:00:10
SysAdmin Linux
SysAdmin Part 3
1
2021-05-24 13:45:43
SysAdmin Linux
SysAdmin Part 2
1
2021-05-24 13:03:55
SysAdmin Linux
SysAdmin Part 6
3
2021-05-24 12:58:31
SysAdmin Linux
SysAdmin Part 5
2
2021-05-24 12:54:17
SysAdmin Linux
SysAdmin Part 4
2
2021-05-24 12:49:31
SysAdmin Linux
SysAdmin Part 1
1
2021-05-23 22:40:48
Cryptography
Find your path
9
2021-05-23 20:39:15
Cryptography
Crypto is not good as you think
8
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