There is no fixed newest Joker IoC URL. Joker, an Android malware family also tracked as Bread, rotates its delivery and command hosts on a rolling basis, so the current indicator is whatever a live feed reported most recently. To get it, pull from a threat intel source that timestamps every entry, filter on the Joker family tag, and sort by first-seen date. Confirm the result against a second source before you push it into a blocklist.
Prerequisites
- Access to at least one feed that lists Android malware URLs with first-seen timestamps.
- Console access to your DNS resolver, secure web gateway, or mobile device management platform.
- A staging file in text or CSV format for indicators before deployment.
- A named owner who reviews the list on a set schedule.
Steps to Find the Current Joker Indicator
- Open a feed that records first-seen dates for malware URLs.
- Search the family name in each of its known forms: Joker, Bread, and Android.Joker.
- Sort the results by first-seen date, newest at the top.
- Copy the top entries along with their host, path, and timestamp.
- Search the same family name in a second feed or in a vendor report published within the last 30 days.
- Keep only entries that appear in both sources or that a vendor report names outright.
- Reduce each URL to the host and the path pattern so a single entry covers rotated subdomains.
- Load the hosts into your blocklist and set an expiry date for each entry.
- Log the source, the pull date, and the analyst who reviewed the list.
- Schedule the next pull before the current entries expire.
How to Verify an Indicator
A timestamp proves when a feed recorded a URL, not that the URL is still live or still tied to Joker. Check the hosting domain's registration age and its reputation history. Look for a vendor report that maps the same host to the Joker family. Confirm the path structure matches patterns already documented for the family, such as an APK dropped from a short, randomized directory. If a host appears in only one feed and no vendor report, mark it as unconfirmed and monitor it instead of blocking it outright, since shared hosting can produce false positives.
Common Mistakes
- Treating a single URL as the answer. Joker rotates hosts, so you need the pattern, not one string.
- Blocking a shared CDN or cloud host and breaking legitimate traffic.
- Using a feed with no timestamps, which makes freshness impossible to judge.
- Pulling once and never refreshing the list.
- Failing to record the source and review date, which blocks any later audit.