Accueil

Les arnaques pullulent sur Internet. L’une des dernières en date provient de prétendus hackers qui affirment avoir piraté votre site Internet. Ils menacent de vendre votre base de données et de détruire votre réputation.

Il y a quelques, j’ai reçu un email dont le contenu était, à première vue, plutôt inquiétant. Le voici :

« Your Site Has Been Hacked PLEASE FORWARD THIS EMAIL TO SOMEONE IN YOUR COMPANY WHO IS ALLOWED TO MAKE IMPORTANT DECISIONS! We have hacked your website https://mywebsite.com and extracted your databases. How did this happen? Our team has found a vulnerability within your site that we were able to exploit. After finding the vulnerability we were able to get your database credentials and extract your entire database and move the information to an offshore server. What does this mean? We will systematically go through a series of steps of totally damaging your reputation. First your database will be leaked or sold to the highest bidder which they will use with whatever their intentions are. Next if there are e-mails found they will be e-mailed that their information has been sold or leaked and your https://quotus.wakonda.guru was at fault thusly damaging your reputation and having angry customers/associates with whatever angry customers/associates do. Lastly any links that you have indexed in the search engines will be de-indexed based off of blackhat techniques that we used in the past to de-index our targets. How do I stop this? We are willing to refrain from destroying your site’s reputation for a small fee. The current fee is $3000 in bitcoins (0.14 BTC). The amount(approximately): $3000 (0.14 BTC) The Address Part 1: bc1qj9u7gmjk5kznnnjgs The Address Part 2: fvs35fftmtfh7n6wk6jt2 So, you have to manually copy + paste Part1 and Part2 in one string made of 42 characters with no space between the parts that start with "b" and end with "2" is the actually address where you should send the money to. Once you have paid we will automatically get informed that it was your payment. Please note that you have to make payment within 72 hours after receiving this message or the database leak, e-mails dispatched, and de-index of your site WILL start! How do I get Bitcoins? You can easily buy bitcoins via several websites or even offline from a Bitcoin-ATM. What if I don’t pay? If you decide not to pay, we will start the attack at the indicated date and uphold it until you do, there’s no counter measure to this, you will only end up wasting more money trying to find a solution. We will completely destroy your reputation amongst google and your customers. This is not a hoax, do not reply to this email, don’t try to reason or negotiate, we will not read any replies. Once you have paid we will stop what we were doing and you will never hear from us again! Please note that Bitcoin is anonymous and no one will find out that you have complied. »

Le message est extrêmement menaçant et me demande de payer une somme importante (3000 dollars) sans quoi ils « détruiront ma réputation » et « désindexeront mon site ». Il convient de ne pas prêter attention à ce message puisqu’il ne s’agit que d’une escroquerie et il est plus que probable que ces personnes mal intentionnées n’aient, en réalité, jamais piraté votre site Internet et qu’ils ne mettront jamais ces menaces à exécution.

Si vous avez aussi reçu ce message, ignorez-le, n’y répondez pas et surtout NE PAYEZ PAS !

Si vous avez une image encodée en base 64 et que vous souhaitez l'enregistrer dans un fichier pour pouvoir ensuite l'afficher, vous pourrez avoir besoin de ce morceau de code. Le code qui suit va décoder une chaîne de caractères initialement encodée en base 64, va créer un fichier et va enregistrer le tout dans un fichier.

$path_image = Rails.root.join('public', 'images', 'articles').to_s
image_string_base_64 = "dGVzdA==..."

File.open($path_image + "/image.png", 'wb') do |file| 
  file.write(Base64.decode64(image_string_base_64))
end

Pour supprimer un dossier ainsi que tous les dossiers et fichiers qu'il contient, on pourra uiliser la ligne de commande suivante :

rm -r dirname

Exemple d'utilisation :

rm -r var/cache/prod