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Buffer overflow in the 64-bit stack - Part 3 @en:it-security:blog
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we used the string ''/bin/zsh'' to the function ''System()'' function to open a root shell. To do this, ho... gramme, but can simply access the function of the system, which, for example, is stored in ''libc'' for ex... GOT, we overwrite an address with the one from ''system()''so that we can issue a system command when calling the function <code gdb> [-------------------------
Buffer Overflow im 64-Bit Stack - Teil 3 @it-security:blog
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ben wir den String ''/bin/zsh'' an die Funktion ''System()'' gesendet, um eine root Shell zu öffen. Hierzu... GOT überschreiben wir eine Adresse mit der von ''system()'', so dass wir beim Aufruf der Funktion einen S... te Adresse geleakt. ==== Stage 2 - libc Base und system ==== Nun benötigen wir die libc-Basis Adresse und die von ''system()''. Diese berechnen wir so: * $base(libc) = g
Buffer Overflow im 64-Bit Stack - Teil 2 @it-security:blog
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.org/wiki/C-Standard-Bibliothek|libc-Funktion]] ''system()'' weitergeleitet wird. Grundlegend basiert dies... AA') RSP: 0x7...fdde0 --> 0x7ffff7e17920 (<__libc_system>: test rdi,rdi) # system("/bin/sh") RIP: 0x400469 (<_init+25>: ret) </code> \\ \\ ===== Abhängigke... ten: <code bash> gdb-peda$ start ... gdb-peda$ p system $1 = {int (const char *)} 0x7ffff7e17920 <__libc_
Buffer overflow in the 64-bit stack - Part 2 @en:it-security:blog
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.org/wiki/C-Standard-Bibliothek|libc-Funktion]] ''system()'' is forwarded. This tutorial is fundamentally ... AA') RSP: 0x7...fdde0 --> 0x7ffff7e17920 (<__libc_system>: test rdi,rdi) # system("/bin/sh") RIP: 0x400469 (<_init+25>: ret) </code> \\ \\ ===== Dependenci... it: <code bash> gdb-peda$ start ... gdb-peda$ p system $1 = {int (const char *)} 0x7ffff7e17920 <__libc_
Windows XP Mode for Windows 7 Home @en:archiv:windows:vista
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r programmes must not be installed in the virtual system! ===== 3 Configuring Windows XP. ===== Start the virtual computer and log into the system. First go to the Security Centre, which can be fo... nd click OK. This will make the red shield in the system try disappear. Next, we scroll all the way down a... ot fix and restart the virtual computer. When the system has restarted, you will immediately notice that t
NTLDR missing Error message @en:windows
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===== You need a bootable CD/DVD of your Windows system. Insert this and check that the boot sequence in ... oot Record ===== Let's assume that the operating system is located on C:. Now you must first repair the M... ond command to repair the partition sector of the system partition. ===== Copy system files ===== Now you need to copy the required system files to the partitio
Reset the registry at an earlier point in time @en:windows
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g at this point is that we get access to the file system. ===== Rename and save the old registry ===== Now go to the folder C:\Windows\system32\config and rename the following files: - SAM - SECURITY - software - default - system These should now be backed up to another partition or similar. ===== Copying from the system restore ===== Now go to the folder "C:\System Vo
FatCat Attack PoC @it-security:blog
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e Sicherheitslücken, um uns volle Rechte über ein System zu sichern. <code text> _____ _ ____ ... om-payloads)) | | ::: | Enumeration | **Enumerate System Info** JAWS((https://github.com/411Hall/JAWS)), S... rieren und starten}}] \\ ==== Zugriff auf das Zielsystem ==== * Mit dem Flipper, wird folgendes Script auf dem Zielsystem ausgeführt <code dos> WINDOWS r DELAY 2000 STRIN
User account control under Windows Vista @en:windows:security
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is an important security feature. It protects the system from unauthorised access through external attacks... oftware\Microsoft\Windows\CurrentVersion\Policies\System </code> Here we create a new value of the REG_DW... oftware\Microsoft\Windows\CurrentVersion\Policies\System </code> Here we create a new value of the REG_DW... oftware\Microsoft\Windows\CurrentVersion\Policies\System </code> Here we create a new value of the REG_DW
Windows - Konsole und Befehle @windows
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bindung mit anderem Computer herstellen'' * Zielsystem eingeben * verbinden {{windows:cv-remote2.jpg?... enötigt **keine interaktive Anmeldung auf dem Zielsystem**. Sofern auf dem Zielsystem der Dienst ''Remoteregistrierung'' aktiv ist, kann man auch Teile der Regis... * ''Mit Netzwerkregistrierung verbinden'' * Zielsystem eingeben * verbinden {{windows:re-remote1.jpg?
Registry zu einem früherem Zeitpunkt zurücksetzen @windows
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dieser Stelle nur, dass wir Zugriff auf das Dateisystem bekommen. ===== Alte Registry umbenennen und sic... hern ===== Nun geht man in den Ordner C:\Windows\system32\config und benennt folgende Dateien um: - SAM - SECURITY - software - default - system Diese sollten nun auf eine andere Partition oder... herstellung ===== Nun geht man in den Ordner "C:\System Volume Information". Hier liegen mehrere Ordner m
FatCat Attack PoC @en:it-security:blog
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tom-payloads)) | |::: | Enumeration | **Enumerate System Info** JAWS((https://github.com/411Hall/JAWS)), S... etasploit Handler}}] \\ ==== Access to the target system ==== * With the pinball machine, the following script is executed on the target system <code dos> WINDOWS r DELAY 2000 STRING powershel... ablished - Metasploit does it ==== <code dos> getsystem hashdump ls getwd cd c: cd Glob_Share ls backgrou
Password Manager @en:software:passwort_manager
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error under Vista Aero * Bugfix of the counter system ==== V3.0.0.13 ==== * Layout optimised * Na... mic encryption * Wrong password bug * Licence system * Dismount container after a defined time in mi... displayed as an entry * Improved copy and paste system * Context menu in the container list: * - Cop... ed * Email to author function * Minimise to system tray possible * Password verification when add
Move swap file under XP @en:archiv:windows:performance
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ores this file on the partition where the Windows system files are located. You can improve the performanc... Click on Performance and Maintenance and then on System. - On the Advanced tab, under System performance, click Settings. - On the Advanced tab, under Virt... e C: has an initial size of less than 126 MB, the system may not be able to save debug information when a
Group Managed Service Accounts @it-security
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UTERNAME>$ </code> ==== testen ==== Auf dem Zielsystem: <code powershell> Test-ADServiceAccount <ACCOUN... die Konsole ''True'' === Bei Fehlern auf dem Zielsystem === Eventuell müssen die RSAT-Tools aktiviert we... im AD, oder als lokaler Administrator auf dem Zielsystem. ===== Dienste ===== Nun können Dienste mit die
Benutzerkontensteuerung (UAC) komplett deaktivieren @windows
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Buffer Overflows - Intro @en:it-security
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Group Managed Service Accounts @en:it-security
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Linux Commands Cheatsheet @en:linux
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Windows restore points @en:windows
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Disable User Account Control (UAC) completely @en:windows
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Die Geschichte in Bildern @archiv:software:razor5
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OSI Layer Cyber-Attacken @it-security
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Linux Befehle Cheatsheet @linux
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Update UnrealIRCD @linux
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MySQL Operating system error number 13 @linux
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Windows Bluescreen Analyse @windows
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Startpartition reparieren @windows
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OSI layer cyber attacks @en:it-security
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Update UnrealIRCD @en:linux
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Windows Bluescreen Analysis @en:windows
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Deactivate automatic data carrier check @en:windows
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Obfuscation: Shellcode als UUIDs tarnen @it-security:blog
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Passwort Manager @software:passwort_manager
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Obfuscation: Disguise shellcode as UUIDs @en:it-security:blog
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Privilege escalation: Windows admin thanks to Linux @en:it-security:blog
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MySQL Operating system error number 13 @en:linux:mysql
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DefCon-1 @archiv
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IRC - Internet Relay Chat @en
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Tutorials @en
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Buffer Overflows - Intro @it-security
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SMB Hardening @it-security
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Sichern des sshd @linux
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Emuliertes Debian unter VMWare @linux
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DokuWiki @wiki
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Formatting Syntax @wiki
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Numlock beim Windows Start aktivieren @windows
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DefCon-1 @en:archiv
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SMB Hardening @en:it-security
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Set up iptables @en:linux
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Emulated Debian under VMWare @en:linux
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DokuWiki @en:wiki
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Formatting Syntax @en:wiki
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Start Microsoft configuration tool @en:windows
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Execute repair of Windows 10 @en:windows
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Privilegien-Eskalation: Windows-Admin dank Linux @it-security:blog
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Shellcode Injection Teil 2 @it-security:blog
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Obfuscation: ByteSwapping @en:it-security:blog
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Shellcode Injection Part 2 @en:it-security:blog
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Set up iptables @en:linux:firewall
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MySQL Backup under Linux @en:linux:mysql
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Execute repair of Windows 10 @en:windows:10
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Windows Security - Basics @en:windows:security
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XP takes a very long time to shut down @en:archiv:windows:performance
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Event log cannot be opened @en:archiv:windows:vista
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