Bytes over DNS, (Mon, Oct 27th)
I was intrigued when Johannes talked about malware that uses BASE64 over DNS to communicate. Take...
Read MoreI was intrigued when Johannes talked about malware that uses BASE64 over DNS to communicate. Take...
Read MoreWhen I have a binary file to analyze, I often use tools like 010 Editor or format-bytes.py (a tool...
Read MoreOver the past two months, my outlook account has been receiving phishing email regarding cloud...
Read MoreInfostealers landscape exploded in 2024 and they remain a top threat today. If Windows remains a...
Read MoreStarting yesterday, some of our honeypots received POST requests to “/cgi-bin/webctrl.cgi”, attempting to exploit an OS command injection vulnerability: POST /cgi-bin/webctrl.cgi Host: [honeypot ip]:80 User-Agent:...
Read MoreYesterday, Chinese security services published a story alleging a multi-year attack against the...
Read MoreThe info is spreading across the news websites: For approximatively two hours, many online services or websites are suffering of an Amazon Web Services outage. Some affected services: Signal Slack Zoom These may affect...
Read MoreI found another piece of malware this weekend. This one looks more like a proof-of-concept because...
Read MoreOverview A vulnerability in cross-origin resource sharing (CORS) headers in Chromium, Google Chrome, Microsoft Edge, Safari, and Firefox enables the CORS policy to be manipulated. Combined with a DNS rebind, an attacker can send...
Read MoreOverview Browser-extension password managers, which autofill sensitive information on websites, can be exposed to various clickjacking attacks. These attacks exploit the trust relationship between a web page and the...
Read MoreAttackers are everywhere! They try to abuse victims using new communication channels and social...
Read MoreThis week, we set up a new Slack workspace for DShield.org. This workspace replaces the old workspace we originally configured back in 2016 or 2017. The workspace was originally configured as a free workspace to support the...
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