{"id":78,"date":"2008-05-17T18:45:00","date_gmt":"2008-05-17T09:45:00","guid":{"rendered":"http:\/\/yokensaka.com\/fedora\/?p=78"},"modified":"2008-05-17T18:45:00","modified_gmt":"2008-05-17T09:45:00","slug":"rootkit%e6%a4%9c%e7%9f%a5%e3%83%84%e3%83%bc%e3%83%abchkrootkit","status":"publish","type":"post","link":"http:\/\/yokensaka.com\/fedora\/?p=78","title":{"rendered":"rootkit\u691c\u77e5\u30c4\u30fc\u30eb(chkrootkit)"},"content":{"rendered":"<p><b>\u25a0\u3000FC2\uff5eFC6 \/ Fedora7 \/ Fedora8 \/ Fedora9<\/b><br \/>\nchkrootkit \u306f\u3001\u30b7\u30b9\u30c6\u30e0\u306brootkit\u304c\u7d44\u307f\u8fbc\u307e\u308c\u3066\u3044\u306a\u3044\u304b\u3092\u691c\u67fb\u3057\u3066\u304f\u308c\u308b\u30c4\u30fc\u30eb\u3067\u3001 rootkit \u3068\u306f\u3001\u4e0d\u6b63\u30a2\u30af\u30bb\u30b9\u306e\u75d5\u8de1\u3092\u6d88\u3057\u53bb\u308a\u3001\u305d\u308c\u3092\u96a0\u307a\u3044\u3057\u3001\u3055\u3089\u306a\u308b\u6a19\u7684\u3092\u653b\u6483\u3059\u308b\u3053\u3068\u3092\u53ef\u80fd\u3068\u3059\u308b\u30c4\u30fc\u30eb\u7fa4\u3002 chkrootkit \u306f\u3001\u3044\u304f\u3064\u304b\u306e rootkit \u3092\u691c\u51fa\u3067\u304d\u308b\u304c\u3001 \u691c\u51fa\u3057\u3066\u3082\u99c6\u9664\u3059\u308b\u6a5f\u80fd\u306f\u306a\u3044\u3002\u3057\u304b\u3057\u3001\u4e0d\u6b63\u4fb5\u5165\u691c\u77e5\u306b\u5f79\u7acb\u3064\u3002<br \/>\n<b>\u25a0chkrootkit\u306e\u30a4\u30f3\u30b9\u30c8\u30fc\u30eb<\/b><\/p>\n<pre>chkrootkit\u3092\u30a4\u30f3\u30b9\u30c8\u30fc\u30eb\n[root@linux ~]# yum -y install chkrootkit<\/pre>\n<p><b>\u25a0chkrootkit\u306e\u5b9f\u884c<\/b><\/p>\n<pre>chkrootkit\u3092\u5b9f\u884c\n[root@linux ~]# chkrootkit\nROOTDIR is `\/'\nChecking `amd'... not found\nChecking `basename'... not infected\nChecking `biff'... not found\nChecking `chfn'... not infected\n\u30fb\n\u30fb\n\u30fb\nChecking `scalper'... not infected\nChecking `slapper'... not infected\nChecking `z2'... user root deleted or never logged from lastlog!\nChecking `chkutmp'... chkutmp: nothing deleted<\/pre>\n<p>\u5b9f\u884c\u7d50\u679c\u4e2d\u306b&#8221;INFECTED&#8221;\u3068\u3044\u3046\u884c\u304c\u306a\u3051\u308c\u3070\u554f\u984c\u306a\u3044<br \/>\n<b>\u25a0chkrootkit\u306e\u5b9f\u884c(\u30a8\u30e9\u30fc\u306e\u307f\u8868\u793a)<\/b><\/p>\n<pre>chkrootkit\u306e\u5b9f\u884c(\u30a8\u30e9\u30fc\u306e\u307f\u8868\u793a)\n[root@linux ~]# chkrootkit -q\nuser root deleted or never logged from lastlog!<\/pre>\n<p><b>\u25a0chkrootkit\u306e\u5b9a\u671f\u81ea\u52d5\u5b9f\u884c\u8a2d\u5b9a<\/b><br \/>\nrootkit\u3092\u767a\u898b\u3057\u305f\u3068\u304droot\u5b9b\u306b\u30e1\u30fc\u30eb\u304c\u6765\u308b\u3088\u3046\u306b\u8a2d\u5b9a<\/p>\n<pre>chkrootkit\u306e\u5b9f\u884c\u30b9\u30af\u30ea\u30d7\u30c8\u3092\u4f5c\u6210\n[root@linux ~]# vi \/root\/chkrootkit.sh\n#!\/bin\/sh\n\/usr\/bin\/chkrootkit > \/var\/log\/chkrootkit_log\ngrep \"INFECTED\" \/var\/log\/chkrootkit_log\nchmod 600 \/var\/log\/chkrootkit_log<\/pre>\n<pre>chkrootkit\u306e\u5b9f\u884c\u30b9\u30af\u30ea\u30d7\u30c8\u306b\u5b9f\u884c\u6a29\u9650\u3092\u4e0e\u3048\u308b\n[root@linux ~]# chmod 700 \/root\/chkrootkit.sh\ncron\u3092\u7de8\u96c6\n[root@linux ~]# crontab -e\n00 02 * * * \/root\/chkrootkit.sh\n\u6bce\u65e52:00\u306bchkrootkit\u306e\u5b9f\u884c\u30b9\u30af\u30ea\u30d7\u30c8\u3092\u5b9f\u884c<\/pre>\n<div align=right><a href=\"#\">\u25b2 \u30da\u30fc\u30b8\u30c8\u30c3\u30d7\u3078<\/a><\/div>\n","protected":false},"excerpt":{"rendered":"<p>\u25a0\u3000FC2\uff5eFC6 \/ Fedora7 \/ Fedora8 \/ Fedora9 chkrootkit \u306f\u3001\u30b7\u30b9\u30c6\u30e0\u306brootkit\u304c\u7d44\u307f\u8fbc\u307e\u308c\u3066\u3044\u306a\u3044\u304b\u3092\u691c\u67fb\u3057\u3066\u304f\u308c\u308b\u30c4\u30fc\u30eb\u3067\u3001 rootkit \u3068\u306f\u3001\u4e0d\u6b63\u30a2\u30af\u30bb\u30b9\u306e\u75d5\u8de1 [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[28],"tags":[],"class_list":["post-78","post","type-post","status-publish","format-standard","hentry","category-22-rootkitchkrootkit"],"_links":{"self":[{"href":"http:\/\/yokensaka.com\/fedora\/index.php?rest_route=\/wp\/v2\/posts\/78","targetHints":{"allow":["GET"]}}],"collection":[{"href":"http:\/\/yokensaka.com\/fedora\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"http:\/\/yokensaka.com\/fedora\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"http:\/\/yokensaka.com\/fedora\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"http:\/\/yokensaka.com\/fedora\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=78"}],"version-history":[{"count":0,"href":"http:\/\/yokensaka.com\/fedora\/index.php?rest_route=\/wp\/v2\/posts\/78\/revisions"}],"wp:attachment":[{"href":"http:\/\/yokensaka.com\/fedora\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=78"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"http:\/\/yokensaka.com\/fedora\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=78"},{"taxonomy":"post_tag","embeddable":true,"href":"http:\/\/yokensaka.com\/fedora\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=78"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}