{"id":94862,"date":"2020-09-22T19:42:18","date_gmt":"2020-09-22T17:42:18","guid":{"rendered":"https:\/\/prohoster.info\/blog\/administrirovanie\/sysmon-teper-mozhet-zapisyvat-soderzhimoe-bufera-obmena"},"modified":"2020-09-22T19:42:18","modified_gmt":"2020-09-22T17:42:18","slug":"sysmon-teper-mozhet-zapisyvat-soderzhimoe-bufera-obmena","status":"publish","type":"post","link":"https:\/\/prohoster.info\/da\/blog\/administrirovanie\/sysmon-teper-mozhet-zapisyvat-soderzhimoe-bufera-obmena","title":{"rendered":"Sysmon kan nu registrere indholdet af udklipsholderen","gt_translate_keys":[{"key":"rendered","format":"text"}]},"content":{"rendered":"<p>Om udgivelsen af version 12 af Sysmon blev der rapporteret den 17. september p\u00e5 <noindex><a rel=\"nofollow\" href=\"https:\/\/docs.microsoft.com\/en-us\/sysinternals\/\">Sysinternals siden<\/a><\/noindex>. Faktisk blev nye versioner af Process Monitor og ProcDump ogs\u00e5 udgivet den dag. I denne artikel vil jeg beskrive en central og tvetydig nyhed i version 12 af Sysmon \u2014 en type h\u00e6ndelse med Event ID 24, som logger brugerens interaktion med udklipsholderen.<\/p>\n<p><img decoding=\"async\" alt=\"Sysmon kan nu registrere indholdet af udklipsholderen\" src=\"\/wp-content\/uploads\/2020\/09\/3e9939a4f6bce70e6b2c3be9d72454c1.png\" style=\"display:block;margin: 0 auto;\" \/><br \/>\n<br \/>\nOplysninger fra denne type h\u00e6ndelser \u00e5bner nye muligheder for kontrol over mist\u00e6nkelig aktivitet (samt nye s\u00e5rbarheder). Du vil kunne forst\u00e5, hvem der, hvorfra, og hvad der blev fors\u00f8gt kopieret. Nedenfor er en beskrivelse af nogle felter i den nye h\u00e6ndelse og et par anvendelsesscenarier.<br \/>\n<noindex><a rel=\"nofollow\" name=\"habracut\"><\/a><\/noindex><br \/>\nDen nye h\u00e6ndelse indeholder f\u00f8lgende felter:<\/p>\n<p><b>Image:<\/b> processen, hvis data blev skrevet til udklipsholderen.<br \/>\n<b>Session:<\/b> sessionen, hvor optegnelsen om udklipsholderadgang fandt sted. Dette kan v\u00e6re system(0) <br \/>\n n\u00e5r der arbejdes interaktivt eller p\u00e5 afstand osv.<br \/>\n<b>ClientInfo:<\/b> indeholder brugernavnet for sessionen, og i tilf\u00e6lde af en fjernsession \u2014 det originale v\u00e6rtsnavn og IP-adresse, hvis disse data er tilg\u00e6ngelige.<br \/>\n<b>Hashes:<\/b> bestemmer filnavnet, hvori den kopierede tekst er blevet gemt (analogt med h\u00e6ndelser af typen FileDelete).<br \/>\n<b>Archived:<\/b> status, om teksten fra udklipsholderen er blevet gemt i Sysmon's arkivmappe.<\/p>\n<p>De sidste par felter v\u00e6kker bekymring. Det er fordi, at siden version 11 kan Sysmon (ved passende indstillinger) gemme forskellige data i sin arkivmappe. For eksempel logger Event ID 23 h\u00e6ndelser for sletning af filer og kan gemme dem alle i den samme arkivmappe. Filnavnene, der er oprettet som f\u00f8lge af arbejdet med udklipsholderen, f\u00e5r tilf\u00f8jet tagget CLIP. Filene selv indeholder de pr\u00e6cise data, der blev kopieret til udklipsholderen.<\/p>\n<p>                        <b class=\"spoiler_title\">S\u00e5dan ser den gemte fil ud<\/b><br \/>\n                        <img decoding=\"async\" alt=\"Sysmon kan nu registrere indholdet af udklipsholderen\" src=\"\/wp-content\/uploads\/2020\/09\/2a3989b724a06d19bcdb8c0d35294e71.png\" style=\"display:block;margin: 0 auto;\" \/><\/p>\n<p>\nGemmes i fil ved installationen. Det er muligt at oprette hvidlister over processer, hvor tekst ikke vil blive gemt.<\/p>\n<p>                        <b class=\"spoiler_title\">S\u00e5dan ser installationen af Sysmon ud med den relevante ops\u00e6tning af arkivmappen:<\/b><br \/>\n                        <img decoding=\"async\" alt=\"Sysmon kan nu registrere indholdet af udklipsholderen\" src=\"\/wp-content\/uploads\/2020\/09\/804bc7475d92886bc7d591e4ccb20eb7.png\" style=\"display:block;margin: 0 auto;\" \/><\/p>\n<p>\nHer t\u00e6nker jeg, vi b\u00f8r huske p\u00e5 adgangskodeadministratorer, som ogs\u00e5 bruger udklipsholderen. Tilstedev\u00e6relsen af Sysmon i systemet med en adgangskodeadministrator vil give dig (eller en angriber) mulighed for at opsnappe disse adgangskoder. Hvis man antager, at du er klar over, hvilken proces der allokerer den kopierede tekst (og det er ikke altid adgangskodeadministratorens proces, men m\u00e5ske en eller anden svchost), kan denne undtagelse tilf\u00f8jes til hvidlisten og ikke gemmes.<\/p>\n<p>M\u00e5ske vidste du ikke, at tekst fra udklipsholderen fanges af den fjernbetjente server, n\u00e5r du skifter til den i RDP-sessiontilstand. Hvis du har noget i udklipsholderen og skifter mellem RDP-sessioner, vil denne information f\u00f8lge med dig.<\/p>\n<p>Lad os opsummere Sysmons muligheder for at arbejde med udklipsholderen.<\/p>\n<p>Det registreres:<\/p>\n<ul>\n<li>Den tekstlige kopi af indsatte data via RDP og lokalt;<\/li>\n<li>Datafangst fra udklipsholderen af forskellige v\u00e6rkt\u00f8jer\/processer;<\/li>\n<li>Kopiering\/inds\u00e6tning af tekst til\/fra den lokale virtuelle maskine, selvom denne tekst ikke er blevet indsat endnu.<\/li>\n<\/ul>\n<p>\nDet registreres ikke:<\/p>\n<ul>\n<li>Kopiering\/inds\u00e6tning af filer til\/fra den lokale virtuelle maskine;<\/li>\n<li>Kopiering\/inds\u00e6tning af filer via RDP;<\/li>\n<li>Malware, der fanger din udklipsholder, skriver kun til selve udklipsholderen.<\/li>\n<\/ul>\n<p>\nP\u00e5 trods af sin tvetydighed vil denne type h\u00e6ndelser g\u00f8re det muligt at genskabe angrebsm\u00f8nstre og hj\u00e6lpe med at identificere tidligere utilg\u00e6ngelige data til postmortem-analyser efter angreb. Hvis optagelsen af indholdet i udklipsholderen er aktiveret, er det vigtigt at registrere hver enkelt adgang til det arkiverede bibliotek og identificere potentielt farlige (initieret ikke af sysmon.exe).<\/p>\n<p>Til registrering, analyse og reaktion p\u00e5 ovenst\u00e5ende h\u00e6ndelser kan v\u00e6rkt\u00f8jet <noindex><a rel=\"nofollow\" href=\"https:\/\/gals.software\/vendors\/quest\/intrust\">InTrust<\/a><\/noindex>, som kombinerer alle tre tilgange og desuden er et effektivt centraliseret lager for alle indsamlede r\u00e5data. Vi kan konfigurere det til integration med popul\u00e6re SIEM-systemer for at minimere udgifterne til deres licenser ved at overf\u00f8re behandlingen og lagringen af r\u00e5data til InTrust.<\/p>\n<p>For at l\u00e6re mere om InTrust, l\u00e6s vores tidligere artikler eller <noindex><a rel=\"nofollow\" href=\"https:\/\/gals.software\/vendors\/quest\/intrust#feedback\">send en foresp\u00f8rgsel via kontaktformularen.<\/a><\/noindex>.<\/p>\n<p><noindex><a rel=\"nofollow\" href=\"https:\/\/habr.com\/ru\/company\/galssoftware\/blog\/512908\/\">Hvordan man reducerer ejeromkostningerne ved et SIEM-system og hvorfor Central Log Management (CLM) er n\u00f8dvendigt<\/a><\/noindex> <\/p>\n<p><noindex><a rel=\"nofollow\" href=\"https:\/\/habr.com\/ru\/company\/galssoftware\/blog\/513714\/\">Vi aktiverer indsamlingen af begivenheder om opstart af mist\u00e6nkelige processer i Windows og identificerer trusler ved hj\u00e6lp af Quest InTrust<\/a><\/noindex><\/p>\n<p><noindex><a rel=\"nofollow\" href=\"https:\/\/habr.com\/ru\/company\/galssoftware\/blog\/513208\/\">Hvordan InTrust kan hj\u00e6lpe med at reducere antallet af mislykkede autorisationsfors\u00f8g via RDP<\/a><\/noindex><\/p>\n<p><noindex><a rel=\"nofollow\" href=\"https:\/\/habr.com\/ru\/company\/galssoftware\/blog\/474574\/\">Identificering af ransomware-angreb, adgang til dom\u00e6nekontrolleren og fors\u00f8g p\u00e5 at modst\u00e5 disse angreb<\/a><\/noindex><\/p>\n<p><noindex><a rel=\"nofollow\" href=\"https:\/\/habr.com\/ru\/company\/galssoftware\/blog\/447522\/\">Hvad der kan udvindes fra logfilerne p\u00e5 en Windows arbejdsstation<\/a><\/noindex> (popul\u00e6r artikel)<\/p>\n<p><noindex><a rel=\"nofollow\" href=\"https:\/\/habr.com\/ru\/company\/galssoftware\/blog\/447512\/\">Hvem gjorde det? Automatisering af informationssikkerhedsrevision<\/a><\/noindex><br \/>\n<br \/>Kilde: <a content=\"nofollow\" rel=\"nofollow\" href=\"https:\/\/habr.com\/ru\/company\/galssoftware\/blog\/520042\/\">habr.com<\/a> <\/p>","protected":false,"gt_translate_keys":[{"key":"rendered","format":"html"}]},"excerpt":{"rendered":"<p>\u041e \u0440\u0435\u043b\u0438\u0437\u0435 12 \u0432\u0435\u0440\u0441\u0438\u0438 Sysmon \u0441\u043e\u043e\u0431\u0449\u0438\u043b\u0438 17 \u0441\u0435\u043d\u0442\u044f\u0431\u0440\u044f \u043d\u0430 \u0441\u0442\u0440\u0430\u043d\u0438\u0446\u0435 Sysinternals. \u041d\u0430 \u0441\u0430\u043c\u043e\u043c \u0434\u0435\u043b\u0435 \u0432 \u044d\u0442\u043e\u0442 \u0434\u0435\u043d\u044c \u0432\u044b\u0448\u043b\u0438 \u0442\u0430\u043a\u0436\u0435 \u043d\u043e\u0432\u044b\u0435 \u0432\u0435\u0440\u0441\u0438\u0438 Process Monitor \u0438 ProcDump. \u0412 \u044d\u0442\u043e\u0439 \u0441\u0442\u0430\u0442\u044c\u0435 \u044f \u0440\u0430\u0441\u0441\u043a\u0430\u0436\u0443 \u043e \u043a\u043b\u044e\u0447\u0435\u0432\u043e\u043c \u0438 \u043d\u0435\u043e\u0434\u043d\u043e\u0437\u043d\u0430\u0447\u043d\u043e\u043c \u043d\u043e\u0432\u043e\u0432\u0432\u0435\u0434\u0435\u043d\u0438\u0438 12 \u0432\u0435\u0440\u0441\u0438\u0438 Sysmon \u2014 \u0442\u0438\u043f\u0435 \u0441\u043e\u0431\u044b\u0442\u0438\u0439 \u0441 Event ID 24, \u0432 \u043a\u043e\u0442\u043e\u0440\u044b\u0439 \u043b\u043e\u0433\u0438\u0440\u0443\u0435\u0442\u0441\u044f \u0440\u0430\u0431\u043e\u0442\u0430 \u0441 \u0431\u0443\u0444\u0435\u0440\u043e\u043c \u043e\u0431\u043c\u0435\u043d\u0430. \u0418\u043d\u0444\u043e\u0440\u043c\u0430\u0446\u0438\u044f \u0438\u0437 \u044d\u0442\u043e\u0433\u043e [&hellip;]<\/p>\n","protected":false,"gt_translate_keys":[{"key":"rendered","format":"html"}]},"author":1,"featured_media":94863,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[688],"tags":[],"class_list":["post-94862","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-administrirovanie"],"aioseo_notices":[],"aioseo_head":"\n\t\t<!-- All in One SEO 5.0.3 - aioseo.com -->\n\t<meta name=\"description\" content=\"\u041e \u0440\u0435\u043b\u0438\u0437\u0435 12 \u0432\u0435\u0440\u0441\u0438\u0438 Sysmon \u0441\u043e\u043e\u0431\u0449\u0438\u043b\u0438 17 \u0441\u0435\u043d\u0442\u044f\u0431\u0440\u044f \u043d\u0430 \u0441\u0442\u0440\u0430\u043d\u0438\u0446\u0435 Sysinternals.\" \/>\n\t<meta name=\"robots\" content=\"max-image-preview:large\" \/>\n\t<meta name=\"author\" content=\"Yuri Gagarin\"\/>\n\t<link rel=\"canonical\" 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