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About cyberguru is certified (RCEH) RingZer0 Certified Elite Hacker

Usernamecyberguru
CountryRussian Federation
Member since2015-02-04
Coins0
Points1176
Write-up with special mention6
Ranking11 / 48562
Challenges completed287 / 391

Challenge Write-up with special mention
Malware Analysis
Just Another MBR Ransomware
mbr_ransomware_rz.pdf
Reverse Engineering
You're not welcome again!
not_welcome_again.pdf
Reverse Engineering
The Matrix
the_matrix_rz.pdf
Reverse Engineering
See No Evil - Part 5
see_no_evil_rz.pdf
Malware Analysis
WebShell of Hell
webshell_of_hell.pdf
Exotic Data Storage
Inspiration
inspiration_writeup.pdf
Validation date Challenge Number of points
2022-03-20 15:48:01
NorthSec 2021
Crapto Century
3
2022-02-14 10:46:47
NorthSec 2021
Knight Portal (2/3)
2
2022-02-13 13:44:55
NorthSec 2021
Knight Portal (1/3)
2
2022-02-10 11:10:55
Web
Captcha III
4
2022-02-10 09:53:41
Web
Captcha IV
3
2021-07-16 04:01:39
Reverse Engineering
I love tea!
4
2021-04-27 12:57:27
Web
UploadStar Reloaded
5
2021-04-27 12:53:08
Web
UploadStar
3
2021-04-26 08:27:10
Web
Lost API
5
2021-04-26 06:56:57
Web
Ping It!
7
2021-04-23 12:02:11
Exotic Data Storage
Inspiration
6
2021-04-19 14:16:56
SQL Injection
Brain Teaser 1
4
2021-04-19 09:11:42
Steganography
5 beautiful colors
3
2021-04-19 09:06:50
Steganography
Crazy Cat Lady
3
2021-04-02 16:03:20
Cryptography
Find your path
9
2020-12-27 06:20:59
Reverse Engineering
Gift as a Service Part 2
2
2020-12-21 04:45:13
Web
Gift as a Service Part 1
3
2020-12-01 11:56:37
Cryptography
Guess the number
6
2020-09-18 09:29:55
Web
NeuroSoft: Observation Unit Center
3
2020-09-17 04:03:42
Web
Beyond Reality Part 2
5
2020-09-16 05:49:41
Web
Beyond Reality Part 1
3
2020-09-15 13:08:04
Cryptography
SSO Service
4
2020-09-15 07:29:14
Cryptography
Malcolm
7
2020-07-12 14:04:34
Web
The archive
5
2020-06-10 04:27:23
Web
Hacking skill are optional
1
2020-06-03 12:27:32
Web
Super Lottery
5
2020-05-29 12:34:42
Pwnage Linux
The Vault
3
2020-05-29 11:45:40
Malware Analysis
WebShell of Hell
5
2019-08-11 07:43:52
Reverse Engineering
See No Evil - Part 5
4
2019-08-11 06:49:02
Reverse Engineering
See No Evil - Part 4
4
2019-08-10 09:45:23
Reverse Engineering
See No Evil - Part 3
3
2019-08-08 13:18:09
Reverse Engineering
See No Evil - Part 2
3
2019-08-07 16:18:03
Reverse Engineering
See No Evil - Part 1
2
2019-07-07 11:37:57
Reverse Engineering
The Matrix
9
2019-04-21 08:55:46
SQL Injection
Don't Stumble in the Process
4
2018-07-19 20:33:11
Reverse Engineering
You're not welcome again!
12
2018-07-03 17:34:34
Reverse Engineering
WASM Part 1
5
2018-07-02 12:30:07
Cryptography
Mars Log
8
2018-06-28 22:33:43
Reverse Engineering
The MI7 password prompt
5
2018-06-23 12:21:52
Cryptography
Crypto Leak
4
2018-04-21 14:59:31
Cryptography
Pattern is the key
6
2018-04-21 11:52:46
Cryptography
Free Flag Encrypter
5
2018-04-20 15:34:36
Jail Escaping
C Jail 5
7
2018-04-19 18:58:19
SQL Injection
!Mysql + Brain fart
13
2018-04-18 20:30:04
Malware Analysis
Capture 1 Part 5
3
2018-04-10 16:58:25
Cryptography
You're Drunk!
1
2018-04-10 15:58:18
Forensics
R.I.P MsPaint
4
2018-04-10 11:23:38
Jail Escaping
C Jail 4
5
2017-11-05 21:23:50
Steganography
Pixel Everywhere
2
2017-11-05 17:28:19
Steganography
The Sloth
2
2017-11-05 13:51:16
Malware Analysis
Just Another MBR Ransomware
8
2017-10-14 12:17:52
SQL Injection
stackoverflow.com lied to me... again
9
2017-08-19 07:18:49
Reverse Engineering
Intro To Sparc
3
2017-08-14 11:07:10
Reverse Engineering
The supreme bash
7
2017-06-13 03:47:59
Reverse Engineering
Trolling the troll
10
2017-06-10 15:23:13
Malware Analysis
APT 1337
4
2017-06-10 10:20:55
Reverse Engineering
Old School
4
2017-06-06 16:44:32
Malware Analysis
RAO democracy
4
2017-05-29 12:23:36
Forensics
802.1X Part 2
8
2017-05-29 11:54:11
Steganography
The vestige of dial-up Internet
2
2017-05-29 07:14:11
Cryptography
Crypto Object
4
2017-05-29 03:09:19
Cryptography
Rusty RSA message signing service
9
2017-02-07 06:00:22
Reverse Engineering
Phenix Golgoth
5
2017-02-04 16:21:03
Forensics
I love cat
2
2017-02-04 10:11:32
Pwnage Linux
Jack the heaper
6
2017-01-29 12:08:27
Web
PHP Fairy
2
2016-10-07 04:45:58
Reverse Engineering
Can I speak with the kernel?
5
2016-09-27 13:02:51
Jail Escaping
C Jail 3
3
2016-08-24 18:31:45
Forensics
Who I am part 2
1
2016-08-21 11:08:39
SQL Injection
Internet As A Service
7
2016-08-20 06:53:40
Reverse Engineering
Let's take a detour
4
2016-08-11 07:28:56
Forensics
802.1X Part 1
4
2016-08-09 09:38:05
Cryptography
Welcome to the asylum
6
2016-07-24 18:12:07
Jail Escaping
PyJail 3
6
2016-07-23 13:46:32
Cryptography
Spies
9
2016-07-22 17:36:11
Web
PHP feature or 0day reloaded?
6
2016-07-22 08:03:33
Web
PHP feature or 0day?
3
2016-07-21 17:11:22
Reverse Engineering
The unknown challenge
11
2016-07-06 19:39:22
Jail Escaping
Bash Jail 5
6
2016-07-06 19:11:27
Reverse Engineering
ASM Lovers
4
2016-07-02 09:08:45
Reverse Engineering
Rebate As A Service
8
2016-06-26 08:29:39
SQL Injection
Login portal 6
10
2016-06-22 19:04:19
Jail Escaping
PHP Jail 5
6
2016-06-21 15:06:42
Reverse Engineering
Altera?
4
2016-05-20 05:19:48
Jail Escaping
Bash Jail 4
4
2016-05-19 18:02:32
Malware Analysis
Capture 2 Part 1
1
2016-04-23 14:30:41
Malware Analysis
Capture 1 Part 7
3
2016-04-23 07:50:15
Shellcoding
Linux x64 shellcoding level 7
14
2016-04-22 18:59:06
Forensics
The good, the bad and the ugly
2
2016-04-22 16:15:11
Jail Escaping
C Jail 2
2
2016-04-21 09:32:32
Pwnage Linux
Base64 As A Service
8
2016-04-10 15:26:17
Steganography
I'm Goronyo Babad Nigerian prince
2
2016-04-10 03:33:08
Jail Escaping
Bash Jail 3
3
2016-04-09 16:35:45
Pwnage Linux
Take over the Virtual World
8
2016-03-24 13:46:56
Jail Escaping
C Jail 1
1
2016-03-24 10:28:17
Jail Escaping
PHP Jail 2
2
2016-03-24 04:31:53
Jail Escaping
PHP Jail 4
4
2016-03-24 04:16:29
Jail Escaping
PHP Jail 3
3
2016-03-23 05:28:13
Jail Escaping
PHP Jail 1
1
2016-03-22 05:17:03
Jail Escaping
Bash Jail 2
2
2016-03-19 18:37:25
Jail Escaping
Bash Jail 1
1
2016-02-04 10:15:44
Cryptography
Fashion Victim
2
2016-02-04 05:57:21
Forensics
Meat Loaf
2
2016-02-04 05:56:51
Forensics
Ping pong
5
2016-02-02 10:26:44
Forensics
Really Depressed Protocol
7
2016-02-01 16:20:18
Malware Analysis
Capture 1 Part 4
2
2016-01-31 07:47:42
Malware Analysis
Capture 1 Part 3
1
2016-01-30 18:00:38
Malware Analysis
Capture 2 Part 3
1
2016-01-30 17:21:11
Malware Analysis
Capture 2 Part 2
1
2016-01-30 13:14:14
Cryptography
TotalSecure Message Encrypter
6
2016-01-30 12:45:52
JavaScript
WTF Lol!
6
2016-01-28 06:17:43
Steganography
Love Letter
3
2016-01-15 12:51:51
Forensics
Who I am?
2
2016-01-15 11:32:20
SysAdmin Linux
SysAdmin Part 5
2
2016-01-14 05:17:20
Steganography
Can you see through the matrix!
3
2016-01-12 15:09:20
Web
Captcha II
4
2016-01-11 07:06:45
Web
XSS Challenge 3
3
2016-01-11 06:15:49
Web
XSS Challenge 5
6
2016-01-10 13:03:38
SysAdmin Linux
SysAdmin Part 7
4
2016-01-10 12:09:06
SysAdmin Linux
SysAdmin Part 6
3
2016-01-09 14:16:46
SQL Injection
Groups of hacker
7
2016-01-08 14:35:33
Web
Big Brother is watching
1
2016-01-04 18:56:50
SysAdmin Linux
SysAdmin Part 3
1
2016-01-02 17:39:24
Web
Serial killer part 2
6
2015-12-14 18:14:21
Steganography
Walk the line!
5
2015-12-12 06:13:59
Reverse Engineering
Keygen time again
10
2015-12-11 19:08:22
Steganography
Hidden In Plain Sight
2
2015-12-11 18:48:35
Pwnage Linux
Sometime there is no buffer overflow
4
2015-12-11 16:27:12
Software Defined Radio
SigID Level 1
1
2015-12-11 13:24:59
Coding Challenges
Ask your grandpa again!
4
2015-12-11 04:21:22
Web
Read the unreadable
5
2015-12-10 09:35:55
Web
Captcha I
2
2015-12-10 07:51:39
Reverse Engineering
Power to the people
4
2015-12-09 13:06:14
Web
Facebook will never forget this one
3
2015-12-08 09:49:46
Reverse Engineering
You're not welcome
8
2015-10-06 15:19:38
Cryptography
Can you understand this sentence?
3
2015-10-05 09:21:19
Malware Analysis
Capture 2 Part 4
3
2015-10-04 16:46:16
Web
XPATH of hell!
7
2015-10-04 16:43:53
Malware Analysis
Capture 1 Part 2
1
2015-10-01 17:16:31
Coding Challenges
Execute me if you can again
6
2015-09-28 16:40:11
SQL Injection
The useless search tool
8
2015-09-27 18:04:13
SQL Injection
Login portal 5
8
2015-09-27 14:42:59
Coding Challenges
Read me if you can
6
2015-09-27 10:34:26
Web
Looking for god in your life?
8
2015-09-24 14:16:35
Malware Analysis
Capture 1 Part 6
3
2015-09-14 15:34:43
Malware Analysis
Capture 1 Part 1
1
2015-09-11 06:54:56
SQL Injection
Don't mess with Noemie; she hates admin!
3
2015-09-10 13:36:23
Pwnage Linux
RPCFTW!
6
2015-09-10 07:13:16
Web
I hate this one
6
2015-09-09 12:29:00
SysAdmin Linux
SysAdmin Part 2
1
2015-09-09 10:53:19
Pwnage Linux
Level4 Pwnage Linux x86_64
7
2015-09-07 14:38:20
Steganography
You're lost? Use the map
1
2015-09-07 14:34:25
Steganography
Missing Pieces
2
2015-09-04 05:17:04
Pwnage Linux
Level3 Pwnage Linux x86_64
7
2015-09-03 02:56:55
Web
Freedom Firewall
5
2015-08-31 14:45:15
Pwnage Linux
Just another useless service
8
2015-08-20 17:12:13
Steganography
Your old friend Orloge Simard
3
2015-08-20 17:02:09
Coding Challenges
Ask your grandpa!
2
2015-08-20 16:55:42
Web
Orao's factory
6
2015-08-19 15:29:04
Coding Challenges
Hash breaker reloaded again
6
2015-08-19 10:37:42
Pwnage Linux
Level2 Pwnage Linux x86_64
4
2015-08-09 15:10:50
Reverse Engineering
Smart enough?
5
2015-06-24 07:59:01
Steganography
Victor reloaded
2
2015-06-24 06:27:26
Steganography
Victor you're hidding me something
1
2015-06-24 06:18:56
Steganography
Brainsick
2
2015-06-24 06:13:43
Steganography
Look inside the house
2
2015-06-20 11:59:04
JavaScript
Valid key required
2
2015-06-18 12:43:27
SQL Injection
0 Day Store
3
2015-06-14 15:02:32
Web
Propaganda mail
4
2015-06-14 09:01:36
Reverse Engineering
Virtual World
5
2015-06-12 17:21:44
Reverse Engineering
Heap allocator
3
2015-06-02 06:50:43
SQL Injection
Random Login Form
2
2015-06-01 08:06:03
Pwnage Linux
Remote Auth
2
2015-05-21 09:18:29
Reverse Engineering
Pwndr3 Authenticator
5
2015-05-04 05:32:42
Reverse Engineering
Update Manager
6
2015-04-19 05:29:34
Cryptography
Hangovers and more: Bacon
3
2015-04-18 13:56:05
Forensics
Russian Crypto Roulette
6
2015-04-18 06:06:56
SQL Injection
Login portal 3
6
2015-04-18 06:06:30
SQL Injection
When it's lite it's not necessarily easy
6
2015-04-17 17:18:42
Web
XSS Challenge 4
3
2015-04-17 17:16:52
Forensics
Spy my girl
5
2015-04-17 06:03:24
Coding Challenges
Find the right word
7
2015-04-15 18:23:52
Forensics
We got breached
5
2015-04-15 14:15:46
Forensics
The words flew but writing remains
3
2015-04-08 18:33:11
Forensics
We got breached again
6
2015-04-08 05:14:57
Shellcoding
Linux x64 shellcoding level 6
12
2015-04-08 04:22:59
SQL Injection
Login portal 4
7
2015-04-07 17:51:36
SysAdmin Linux
SysAdmin Part 8
4
2015-04-07 15:32:48
Forensics
Agent Smith reloaded
4
2015-04-07 15:12:35
Cryptography
Martian message part 3
3
2015-04-07 15:07:05
Cryptography
Encrypted Zip
4
2015-04-07 08:56:45
SQL Injection
Size DOES matter
7
2015-04-07 08:50:09
SQL Injection
Hot Single Mom
6
2015-04-07 08:46:43
Coding Challenges
Number game
7
2015-04-04 08:20:55
Shellcoding
Linux x64 shellcoding level 5
10
2015-04-04 06:53:37
Jail Escaping
PyJail 2
5
2015-04-04 06:14:51
Jail Escaping
PyJail 1
3
2015-04-01 16:34:46
Forensics
Poor internet connection
4
2015-04-01 15:43:21
Forensics
Someone steal my flag!
3
2015-04-01 14:58:35
Cryptography
I Lost my password
3
2015-04-01 14:48:23
Cryptography
File recovery
1
2015-04-01 12:37:30
Shellcoding
Linux x64 shellcoding level 4
8
2015-04-01 12:05:51
Web
Password reset
2
2015-04-01 11:59:44
SQL Injection
Login portal 2
3
2015-04-01 11:59:07
Shellcoding
Linux x64 shellcoding level 3
6
2015-03-30 19:01:36
Cryptography
Crypto over the network
4
2015-03-30 15:45:41
Cryptography
Martian message part 2
2
2015-03-30 15:31:04
SQL Injection
No more hacking for me!
4
2015-03-30 14:28:20
Web
Unreadable captcha
2
2015-03-30 09:53:07
Coding Challenges
Ascii Art
6
2015-03-30 08:33:53
Forensics
Someone steal my flag again
5
2015-03-30 07:30:51
Cryptography
Is it a secure string?
5
2015-03-30 07:29:35
Shellcoding
Linux x64 shellcoding level 2
4
2015-03-30 07:28:53
Exotic Data Storage
Just another login form
2
2015-03-28 13:40:48
SQL Injection
Thinking outside the box is the key
4
2015-03-28 13:33:40
SQL Injection
Quote of the day reloaded
5
2015-03-28 13:07:24
Web
Malicious upload
2
2015-03-28 12:56:39
Web
Password reset reloaded
3
2015-03-28 12:56:20
Web
XSS Challenge 2
2
2015-03-28 12:56:03
Web
XSS Challenge 1
2
2015-03-28 12:55:21
JavaScript
Why not be more secure?
5
2015-03-27 08:12:44
Coding Challenges
Classic Sudoku
7
2015-03-26 08:04:20
Web
Secure Mail
8
2015-03-26 07:01:37
Cryptography
Crypto is not good as you think
8
2015-03-26 06:02:26
Cryptography
Public key recovery
2
2015-03-26 05:45:04
Pwnage Linux
Level1 Pwnage Linux x86_64
3
2015-03-26 05:41:30
Coding Challenges
Execute me if you can
5
2015-03-23 08:26:46
JavaScript
Most Secure Crypto Algo
2
2015-02-11 07:28:00
Shellcoding
Basics of Linux x64 shellcoding
2
2015-02-11 06:24:15
SysAdmin Linux
SysAdmin Part 1
1
2015-02-11 06:09:46
SysAdmin Linux
SysAdmin Part 4
2
2015-02-09 09:57:04
SQL Injection
/etc/passwd
7
2015-02-09 09:04:01
Steganography
A ghost sound
2
2015-02-09 08:24:27
SQL Injection
Quote of the day
4
2015-02-09 08:14:56
SQL Injection
What's the definition of NULL
3
2015-02-09 06:21:59
Web
Admin Portal
2
2015-02-09 06:14:38
Web
Security thru obscurity!
2
2015-02-08 17:34:14
Web
Area 51
1
2015-02-08 17:32:53
Web
Words mean something?
1
2015-02-08 17:31:31
Web
Headache
1
2015-02-08 17:25:47
Web
REST in peace
3
2015-02-08 15:10:48
JavaScript
Then obfuscation is more secure
1
2015-02-08 14:48:28
Forensics
Dr. Pouce
2
2015-02-08 14:39:25
Forensics
Attention Dinosaure Survive
2
2015-02-08 14:23:09
Forensics
Hide my ass in my home!
2
2015-02-08 10:48:07
Forensics
3 / 3 Suspicious account password?
4
2015-02-08 10:22:54
Forensics
2 / 3 Did you see my desktop?
3
2015-02-08 10:19:56
Forensics
1 / 3 Do not waste the environment
2
2015-02-08 09:22:55
Forensics
Hey Chuck where is the flag?
2
2015-02-08 08:57:30
Forensics
I made a dd of Agent Smith usb key
1
2015-02-08 07:58:13
Cryptography
Some martian message
1
2015-02-07 13:55:47
JavaScript
Why not?
2
2015-02-07 09:02:37
Coding Challenges
Xor me if you can
6
2015-02-07 08:43:12
Coding Challenges
Hash breaker reloaded
5
2015-02-07 08:40:36
Coding Challenges
Hash breaker
4
2015-02-07 08:33:34
Coding Challenges
I hate mathematics
3
2015-02-07 08:28:27
Coding Challenges
I saw a little elf
4
2015-02-07 08:14:05
Coding Challenges
Hash me reloaded
3
2015-02-07 08:10:58
Coding Challenges
Hash me please
2
2015-02-07 07:52:22
Pwnage Linux
Can you get the service password
4
2015-02-07 07:25:26
Pwnage Linux
Level4 Pwnage Linux Level Up
5
2015-02-07 06:32:57
Pwnage Linux
Level3 Pwnage Linux Level Up
3
2015-02-07 06:01:18
Pwnage Linux
Level2 Pwnage Linux Level Up
2
2015-02-07 05:25:35
Pwnage Linux
Level1 Pwnage Linux Level Up
1
2015-02-07 04:49:52
Reverse Engineering
Flag stealer
6
2015-02-06 16:59:33
Reverse Engineering
RingZer0 Authenticator
5
2015-02-06 15:42:36
Reverse Engineering
Kernel introduction
3
2015-02-06 15:24:46
Reverse Engineering
Back to our roots
5
2015-02-06 12:57:08
Reverse Engineering
Windows API for the win
4
2015-02-06 06:49:00
Reverse Engineering
Crack Me 1
3
2015-02-06 06:09:11
Reverse Engineering
Introduction to MIPS
3
2015-02-06 05:02:12
Reverse Engineering
Need a client
6
2015-02-05 10:40:38
Reverse Engineering
I never forget the Nintendo 64
3
2015-02-05 03:55:50
Reverse Engineering
Wrong byte!
4
2015-02-05 03:12:25
Reverse Engineering
Introduction to ARM
4
2015-02-05 02:44:04
Reverse Engineering
Windows x86 reversing is cool
3
2015-02-05 02:32:42
Reverse Engineering
Can you see through the star
2
2015-02-04 18:24:31
Reverse Engineering
Time to learn x86 ASM & gdb
2
2015-02-04 17:43:47
SQL Injection
Po po po po postgresql
2
2015-02-04 17:32:08
SQL Injection
Login portal 1
2
2015-02-04 17:29:20
SQL Injection
ACL rulezzz the world.
2
2015-02-04 17:27:59
SQL Injection
Most basic SQLi pattern.
1
2015-02-04 17:00:26
Web
Looking for password file
1
2015-02-04 16:54:36
JavaScript
Hashing is more secure
1
2015-02-04 16:54:01
JavaScript
Client side validation is bad!
1
2015-02-04 16:51:44
Web
Looking for the flag?
3
2015-02-04 16:49:24
Web
Serial killer!
3
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