ActivityPub Viewer

A small tool to view real-world ActivityPub objects as JSON! Enter a URL or username from Mastodon or a similar service below, and we'll send a request with the right Accept header to the server to view the underlying object.

Open in browser →
{ "@context": [ "https://www.w3.org/ns/activitystreams", { "ostatus": "http://ostatus.org#", "atomUri": "ostatus:atomUri", "inReplyToAtomUri": "ostatus:inReplyToAtomUri", "conversation": "ostatus:conversation", "sensitive": "as:sensitive", "toot": "http://joinmastodon.org/ns#", "votersCount": "toot:votersCount", "litepub": "http://litepub.social/ns#", "directMessage": "litepub:directMessage", "Hashtag": "as:Hashtag" } ], "id": "https://infosec.exchange/users/barubary/statuses/109315811977585662", "type": "Note", "summary": null, "inReplyTo": null, "published": "2022-11-09T20:48:36Z", "url": "https://infosec.exchange/@barubary/109315811977585662", "attributedTo": "https://infosec.exchange/users/barubary", "to": [ "https://www.w3.org/ns/activitystreams#Public" ], "cc": [ "https://infosec.exchange/users/barubary/followers" ], "sensitive": false, "atomUri": "https://infosec.exchange/users/barubary/statuses/109315811977585662", "inReplyToAtomUri": null, "conversation": "tag:infosec.exchange,2022-11-09:objectId=20630015:objectType=Conversation", "content": "<p>In order to test <a href=\"https://infosec.exchange/tags/antivirus\" class=\"mention hashtag\" rel=\"tag\">#<span>antivirus</span></a> software, the <a href=\"https://en.wikipedia.org/wiki/EICAR_test_file\" target=\"_blank\" rel=\"nofollow noopener noreferrer\">EICAR test virus</a> was created:</p><pre><code>X5O!P%@AP[4\\PZX54(P^)7CC)7}$EICAR-STANDARD-ANTIVIRUS-TEST-FILE!$H+H*<br></code></pre><p>It is 68 bytes of plain ASCII text that also happen to be valid x86 machine code (all it does is output <code>EICAR-STANDARD-ANTIVIRUS-TEST-FILE!</code> and stop). The idea is that AV will treat this harmless file like malware, so you can test whether detection works properly without having to download an actual virus.</p><p>The original <a href=\"https://infosec.exchange/tags/eicar\" class=\"mention hashtag\" rel=\"tag\">#<span>eicar</span></a> spec called for AV to detect any file that starts with this string of 68 bytes. However, in 2002 a Windows batch worm was created that disguised itself as a harmless test file by starting its list of commands with the EICAR string (which causes a \"command not found\" error, but does not prevent the rest of the .bat file from running). If the user had AV installed, it would detect the worm only as a harmless test file.</p><p>To fix this, the <a href=\"https://www.eicar.org/download-anti-malware-testfile/\" target=\"_blank\" rel=\"nofollow noopener noreferrer\">EICAR spec</a> was updated in 2003. It places the following constraints on the test file:</p><ul><li>It must be 128 bytes long or less.</li><li>The first 68 bytes must be identical to the test string shown above.</li><li>All following bytes (if any) must be from the following set of ASCII characters: space (32), tab (9), carriage return (13), line feed (10), Ctrl-Z (26).</li></ul><p>Anything else will not be detected as the EICAR test virus. This prevents actual malware from hiding behind the EICAR test.</p>", "contentMap": { "en": "<p>In order to test <a href=\"https://infosec.exchange/tags/antivirus\" class=\"mention hashtag\" rel=\"tag\">#<span>antivirus</span></a> software, the <a href=\"https://en.wikipedia.org/wiki/EICAR_test_file\" target=\"_blank\" rel=\"nofollow noopener noreferrer\">EICAR test virus</a> was created:</p><pre><code>X5O!P%@AP[4\\PZX54(P^)7CC)7}$EICAR-STANDARD-ANTIVIRUS-TEST-FILE!$H+H*<br></code></pre><p>It is 68 bytes of plain ASCII text that also happen to be valid x86 machine code (all it does is output <code>EICAR-STANDARD-ANTIVIRUS-TEST-FILE!</code> and stop). The idea is that AV will treat this harmless file like malware, so you can test whether detection works properly without having to download an actual virus.</p><p>The original <a href=\"https://infosec.exchange/tags/eicar\" class=\"mention hashtag\" rel=\"tag\">#<span>eicar</span></a> spec called for AV to detect any file that starts with this string of 68 bytes. However, in 2002 a Windows batch worm was created that disguised itself as a harmless test file by starting its list of commands with the EICAR string (which causes a \"command not found\" error, but does not prevent the rest of the .bat file from running). If the user had AV installed, it would detect the worm only as a harmless test file.</p><p>To fix this, the <a href=\"https://www.eicar.org/download-anti-malware-testfile/\" target=\"_blank\" rel=\"nofollow noopener noreferrer\">EICAR spec</a> was updated in 2003. It places the following constraints on the test file:</p><ul><li>It must be 128 bytes long or less.</li><li>The first 68 bytes must be identical to the test string shown above.</li><li>All following bytes (if any) must be from the following set of ASCII characters: space (32), tab (9), carriage return (13), line feed (10), Ctrl-Z (26).</li></ul><p>Anything else will not be detected as the EICAR test virus. This prevents actual malware from hiding behind the EICAR test.</p>" }, "attachment": [], "tag": [ { "type": "Hashtag", "href": "https://infosec.exchange/tags/antivirus", "name": "#antivirus" }, { "type": "Hashtag", "href": "https://infosec.exchange/tags/eicar", "name": "#eicar" } ], "replies": { "id": "https://infosec.exchange/users/barubary/statuses/109315811977585662/replies", "type": "Collection", "first": { "type": "CollectionPage", "next": "https://infosec.exchange/users/barubary/statuses/109315811977585662/replies?only_other_accounts=true&page=true", "partOf": "https://infosec.exchange/users/barubary/statuses/109315811977585662/replies", "items": [] } }, "likes": { "id": "https://infosec.exchange/users/barubary/statuses/109315811977585662/likes", "type": "Collection", "totalItems": 7 }, "shares": { "id": "https://infosec.exchange/users/barubary/statuses/109315811977585662/shares", "type": "Collection", "totalItems": 3 } }