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Michael Gillespie Demonslay335

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@Demonslay335
Demonslay335 / sporachecker.py
Last active March 10, 2017 22:16
Checks for files encrypted by Spora
"""
Spora Encryption Checker
Author: @demonslay335
"""
import sys
import zlib
import struct
import os
@Demonslay335
Demonslay335 / btcware_config.py
Last active January 17, 2018 17:33
Extract BTCWare ransomware config
"""
Extract BTCWare Ransomware Config
Author: @demonslay335
"""
import sys
import string
import re
import os
import argparse
@Demonslay335
Demonslay335 / rotbuster.ps1
Created February 16, 2018 19:30
Rot Buster
# Credit: https://twitter.com/Lee_Holmes/status/964576204425580544
param([string]$a)
0..25 | % { [PSCustomObject] @{
Offset = $_
Value = & {
param($v, $o) -join ($v.ToCharArray() | % {
[char](((([int][char]$_) - ([int][char]'a') + $o) % 26) + ([int][char]'a'))
})
} $a $_
@Demonslay335
Demonslay335 / rapid_config.py
Created August 17, 2018 15:23
"""
Extract Rapid 2.0 ransomware config from encrypter or decrypter
Author: @demonslay335
"""
import os, sys, string, re, binascii, base64, argparse
# https://stackoverflow.com/a/17197027/1301139
def strings(filename, min=4, max=10000):
with open(filename, "rb") as f: # Python 2.x
@Demonslay335
Demonslay335 / QueryQNAPUpdate.ps1
Created September 20, 2018 21:33
Query a QNAP for any available updates using the API (PowerShell 5)
# Ignore self-certs
if (-not ([System.Management.Automation.PSTypeName]'ServerCertificateValidationCallback').Type)
{
$certCallback = @"
using System;
using System.Net;
using System.Net.Security;
using System.Security.Cryptography.X509Certificates;
public class ServerCertificateValidationCallback
{
@Demonslay335
Demonslay335 / peplink_ipsec.py
Created October 17, 2018 17:01
Get status of IPsec VPN tunnels on Peplink Balance
@Demonslay335
Demonslay335 / calculate_rsa.cs
Last active December 17, 2018 18:49
Generate private RSA key from factored primes
using System;
using Org.BouncyCastle.Math;
public BigInteger CalculateRSA(BigInteger p, BigInteger q, BigInteger e)
{
// n = p*q - for illustration
BigInteger n = p.Multiply(q);
// phi / r = (p-1)*(q-1)
BigInteger phi = p.Subtract(BigInteger.One).Multiply(q.Subtract(BigInteger.One));
@Demonslay335
Demonslay335 / jemd_keygen.py
Created December 19, 2018 04:22
Keygen for Jemd Ransomware
import os, sys, argparse
# Charset used by Jemd ransomware
charset = 'abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ'
# https://en.wikipedia.org/wiki/Linear_congruential_generator
def lcg(modulus, a, c, seed):
while True:
seed = (a * seed + c) % modulus
yield seed
@Demonslay335
Demonslay335 / permutations_of_arrays.cs
Last active January 31, 2019 19:33
Generate permutations of an array of arrays
// Get permutations of an array of arrays
// Adapted from: https://www.geeksforgeeks.org/combinations-from-n-arrays-picking-one-element-from-each-array/
public static IEnumerable<List<T>> PermutationsOfArrays<T>(IList<List<T>> arr)
{
// Number of arrays
int n = arr.Count();
// Keep track of next element in each of the n arrays
int[] indices = new int[n];
@Demonslay335
Demonslay335 / notes.txt
Last active February 29, 2020 00:52
Makop Ransomware Notes
Sample:
fe52d906fa596e7ae16633074ff7178b3ac40e26a93f0009f1b33d5cbf219e91
Strings and config encrypted with static AES-256 key:
08 02 00 00 10 66 00 00 20 00 00 00 5D 1D E0 32 A9 6D E4 05 A5 5B 12 E1 1F B9 03 A1 CF 2D F8 5A 29 87 78 4D EC 28 61 C1 13 96 FA 15
Decrypted RSA-1024 public key:
06 02 00 00 00 A4 00 00 52 53 41 31 00 04 00 00 01 00 01 00 F1 D1 12 AA DF 72 34 19 DC A4 6E 18 07 15 67 9F F2 6F 4F 03 A7 61 5B 97 C5 6C 20 13 21 A7 40 24 48 91 8D 47 32 81 9B 14 D4 82 0F AF 8A F8 EC 66 8E 87 26 CD 15 37 FC 03 8D 10 BB 90 6D 1D D0 A6 41 A4 B2 60 5F 60 46 45 4C 70 44 20 54 90 C0 D9 4D F6 B2 90 33 BF 78 51 AC E5 76 F6 EB 9C CF 83 A3 21 DD F8 B9 46 67 8B 7A 04 71 54 FD D7 1B 17 DE 39 7A 70 D6 04 AE AD AF 38 B8 1C B8 73 5D A6
Targeted extensions: