eXenon

#!/usr/bin/python2

"""
    Use scapy to modify packets going through your machine.
    Based on nfqueue to block packets in the kernel and pass them to scapy for validation
"""

import nfqueue
from scapy.all import *
import os

joepie91

Don't use VPN services.

No, seriously, don't. You're probably reading this because you've asked what VPN service to use, and this is the answer.

Note: The content in this post does not apply to using VPN for their intended purpose; that is, as a virtual private (internal) network. It only applies to using it as a glorified proxy, which is what every third-party "VPN provider" does.

• A Russian translation of this article can be found here, contributed by Timur Demin.
• A Turkish translation can be found here, contributed by agyild.
• There's also this article about VPN services, which is honestly better written (and has more cat pictures!) than my article.

Informatic

1. Format your storage
2. Configure networking (it's easiest with LuCI, or just take a look at OpenWRT howtos)
3. Configure /storage by adding proper options in /etc/config/fstab, or, again, just clicking around in LuCI
4. opkg update && opkg install tor
5. Copy proper configuration, namely /etc/tor/torrc and /etc/config/uhttpd
6. Reboot (or /etc/init.d/uhttpd restart && /etc/init.d/tor restart)
7. Check /etc/tor/hidden_service/hostname for your public .onion address
8. ...
9. PROFIT!

williballenthin

radare2

load without any analysis (file header at offset 0x0): r2 -n /path/to/file

• analyze all: aa
• show sections: iS
• list functions: afl
• list imports: ii
• list entrypoints: ie
• seek to function: s sym.main

gnpar

#!/usr/bin/env python
import sys

helptext = """
Redirect output to asn1.conf and then create and check the key with:
openssl asn1parse -genconf asn1.conf  -out key.der
openssl rsa -in key.der -inform der -text -check
"""

#### Extended Euclidean Algorithm and Modular Inverse

irbull

#include <iostream>
#include <openssl/aes.h>
#include <openssl/evp.h>
#include <openssl/rsa.h>
#include <openssl/pem.h>
#include <openssl/ssl.h>
#include <openssl/bio.h>
#include <openssl/err.h>
#include <assert.h>

jcberthon

NetworkManager WiFi Power Saving

NetworkManager supports WiFi powersaving but the function is rather undocumented.

From the source code: wifi.powersave can have the following value:

• NM_SETTING_WIRELESS_POWERSAVE_DEFAULT (0): use the default value
• NM_SETTING_WIRELESS_POWERSAVE_IGNORE (1): don't touch existing setting
• NM_SETTING_WIRELESS_POWERSAVE_DISABLE (2): disable powersave

rain-1

WannaCry|WannaDecrypt0r NSA-Cyberweapon-Powered Ransomware Worm

• Virus Name: WannaCrypt, WannaCry, WanaCrypt0r, WCrypt, WCRY
• Vector: All Windows versions before Windows 10 are vulnerable if not patched for MS-17-010. It uses EternalBlue MS17-010 to propagate.
• Ransom: between $300 to $600. There is code to 'rm' (delete) files in the virus. Seems to reset if the virus crashes.
• Backdooring: The worm loops through every RDP session on a system to run the ransomware as that user. It also installs the DOUBLEPULSAR backdoor. It corrupts shadow volumes to make recovery harder. (source: malwarebytes)
• Kill switch: If the website www.iuqerfsodp9ifjaposdfjhgosurijfaewrwergwea.com is up the virus exits instead of infecting the host. (source: malwarebytes). This domain has been sinkholed, stopping the spread of the worm. Will not work if proxied (source).

update: A minor variant of the viru

probonopd

Orange Pi Zero

Ideas

• Port HomeServer to it
• Read-only thanks to overlayroot
• Native serial for Viessmann w/o USB-to-Serial
• Native 433 MHz sending w/o Arduino
• Native Audio output w/o USB dongle; can attach small amp board
• Webcam via USB with motion

eLement87

#include <FS.h>
#include <ESP8266WiFi.h>
#include <WiFiClientSecure.h>
#include <PubSubClient.h>
#include <time.h>

// Insert your FQDN of your MQTT Broker
#define MQTT_SERVER "mqtt.srvx1.local"
const char* mqtt_server = MQTT_SERVER;