unexpectedlocalsettings

localsettings  时间:2021-04-12  阅读:()
Protectingtheirreplaceable|f-secure.
comStudyoneffectivenessofpopulardefensemeasuresJarnoNiemel.
VirusBulletin2013Twitter:@jarnomnStatisticallyeffectiveprotectionagainstAPTattacksWhyThisResearchWasMadeApplyinghardeningincorporateenvironmentisexpensiveThusIwantedtogivedecisionmakingsupporttoolsforcorporatesecurityInthisresearchweevaluatedpopularhardeningapproachesagainstasetofexploitsAttacksanddefensesevolveconstantlysowefocusedmoreondifferentstylesofapproachratherthanexactsettingsortoolsFortestsweobviouslyusedpubliclyavailabletoolsExploitsUsedInTestsTheusedexploitsetconsistedof~930confirmedexploitdocumentsamplesSamplesinthewild2010-2013CVEidentificationwasdonebyscanresultsMostexploitshaveshortlifespaninactiveuseAPTnatureverifiedbycontextidentificationPressevents,conferenceproceedingsDiplomatic/politicalreports,analysisHumanrights/activismreports,articlesMilitaryreports,events,analysisBusinessrelatedmailF-SecureOctober10,20133050100150200250300051015202530354045500102030405060708090100110120130140150051015202530354045501.
1.
101.
3.
101.
5.
101.
7.
101.
9.
101.
11.
101.
1.
111.
3.
111.
5.
111.
7.
111.
9.
111.
11.
111.
1.
121.
3.
121.
5.
121.
7.
121.
9.
121.
11.
121.
1.
131.
3.
13AnalysisMethodWetestedsampleswithWindowsXPSP3AdobeAcrobat8.
0.
0AdobeFlashplayer6.
0Office2003WeintentionallyusedobsoletesoftwareversionstoenableasmanyexploitsaspossibleWeusedautomaticforensicstocheckforexploitsuccessindicatorsNetworkcommunicationProcesscreationFilecreationEachexploitwasverifiedtoworkconsistentlyinbasesystemF-SecureOctober10,20134ProtectionMethodsApplicationmemoryhandlingmitigationsApplicationSandboxingHardeningapplicationsettingsHardeningoperatingsystemF-SecureOctober10,20135ApplicationSanboxingChrome,Acrobat,etcpopularappshavebuiltinsandboxingTheproblemwiththemisthatattackerhastocircumventtheminordertoexploitThuswewantedtotestexploitsagainstunexpectedsandboxingWeusedSandboxie3.
76ProwithcustomconfigurationOwnsandboxforeachdocumenttypeFileexecutiondeniedforanyfilescreatedbysandboxedapplicationNofileaccessoutsidethesandboxforAcrobatAccessto%documents%%recent%andnetworkdrivesforOfficeapplicationsF-SecureOctober10,20136ChangestoOfficeInstalledOfficefilevalidationInstalledMOICEisolationSetMacrosecurityleveltohighDisabledtrustonadd-onsandtemplatesChangestoAcrobatDisabledopeningnon-PDFattachmentsDisabledtrustinmultimediacomponentsDisabledmultimediaplayerDisabledJavascriptF-SecureOctober10,20137HardenedSecuritySettingsForClientAppsAdvisoriesoftenhavemitigationinstructionswhattodobeforepatchisavailableWewantedtofindouthoweffectivethosemeasuresareingeneralWhoonearthneedsaflashcontentinPDFfileinthefirstplaceAfterVBpapersubmissionNSAcameoutwiththeirAcrobatguidelineshttp://www.
nsa.
gov/ia/_files/app/Recommendations_for_Configuring_Adobe_Acrobat_Reader_XI_in_a_Windows_Environment.
pdfHardenedSystemAccessPoliciesInT22011weannouncedresearchpointingtothathardeningbreaksmalwareHoweverAPTsarequiteadifferentbeastcomparedtoplainoldmalwareWetestedthesamplesagainstfollowinghardenedsystemsettingsBlockedfilewritingtorootsofC:\,D:\,etc,%localsettings%,%appdata%BlockedfilewritingrecursivelytoC:\windows,%programfiles%PreventedfileexecutionfromC:\,%documents%,c:\RECYCLER,%temp%,%APPDATA%,%localsettings%F-Secure10.
lokakuuta20138ApplicationMemoryHandlingMitigationsMemoryhandlingmitigationspreventtypesofmemoryoperationsneededbyexploitsThusnormalappsaremostlyunhinderedwhileexploitsfailtoworkCurrentlyonlytoolprovidingsuchcapabilitiesisMicrosoftEMETAllocationmitigations(SEHOP,Heapspray,ASLR,Nullpage)Codeexecutionorloadingmitigations(DEP,ROP,Bottomuprnd,EAF)Hookingpreventions(Deephooks,Antidetours,Bannedfunctions)ForthisresearchweusedEmet4.
0bwhichwasthelatestavailableF-SecureOctober10,20139ApplicationSandboxingResultsUnfortunatelySandboxieinterferedwithourautomaticforensicsWewereabletogetresultsfor452sampleswith100%protectionOftheremainingsampleswetested60randomsampleswhichhad100%protectionSowecantsaywithfullcertainty,butthirdpartysandboxingseemstobeeffectiveBuiltinpayloadsweredroppedbutnotexecutedSampleswhichtriedtodownloadwereblockedF-SecureOctober10,201310CVEFailed:networkeventFailed:fileeventFailed:processeventSuccessCVE-2004-02101CVE-2006-24921CVE-2006-35903CVE-2007-565921CVE-2008-48411CVE-2009-09271CVE-2009-3129219CVE-2009-43249CVE-2010-01886221231CVE-2010-08068CVE-2010-12975CVE-2010-257217CVE-2010-288382CVE-2010-3333133946CVE-2010-365429CVE-2011-00971CVE-2011-010168CVE-2011-061121CVE-2011-12691CVE-2012-0158144916CVE-2012-07792GrandTotal894556737HardenedClientAppsresultsHardeningapplicationsgave80%totalprotectionagainstexploitsCVE-2010-0188failedasnotallsampleswereusingJavaScriptCVE-2010-0188failedaswedidnotthinkifisolatingRTFfilesCVE-2012-0158alsofailedduenotisolatingRTFfilesInOffice2013OFVandMOICEarebuiltinInAcrobattherecommendationsstillapplyF-SecureOctober10,201311HardenedSystemAccessPoliciesresultsHardenedsystemaccesspoliciesgaveverysmalltotalprotectionof~10%~7%werepartiallymitigatedNetworkwasblockedin40samplesProcesscreationblockedin28samplesSointotalsystemhardeningisineffectiveF-SecureOctober10,201312CVEFailed:networkeventFailed:fileeventFailed:processeventSuccessCVE-2004-02101CVE-2006-24921CVE-2006-35903CVE-2007-5659201CVE-2008-48411CVE-2009-09271CVE-2009-3129159528CVE-2009-4324324CVE-2010-01882942CVE-2010-080671CVE-2010-12975CVE-2010-2572287CVE-2010-2883327250CVE-2010-3333182141CVE-2010-365411126CVE-2011-00971CVE-2011-010145113CVE-2011-0611192CVE-2011-12691CVE-2012-015815217CVE-2012-07792GrandTotal34634115189MemoryHandlingMitigationsResultsEMETwasabletostopeverysingleexploit!
However4.
0bisnewerthansamples,soresultscanbeskewedThereareclaimsthatEMETcanbecircumventedButinourtestswecouldnotfindasamplethatactuallydoessoMemoryhandlingmitigationsarenoteffectiveagainstallexploittypesIfexploitisbasedonotherthancodeexecution,EMETwillnothelpButsuchexploitsareveryrareandwecouldnotfindinthewildsampleF-SecureOctober10,201313CVEfailedsuccesscve-2004-021001cve-2006-249201cve-2006-359003cve-2007-5659021cve-2008-484101cve-2009-092701cve-2009-31290219cve-2009-432409cve-2010-01880296cve-2010-080608cve-2010-129705cve-2010-2572017cve-2010-2883082cve-2010-3333098cve-2010-3654029cve-2011-009701cve-2011-0101068cve-2011-0611021cve-2011-126901cve-2012-0158043cve-2012-077902GrandTotal0927DefenceInDepth,HardenYourNetworkPreventlateralmovementwithinyournetworkIsolateeverythinginnetwork,noinboundtoclientsnooutboundfromserverBlockremoteexecutionandRDPfromotherthanadminnetworksegmentAllowusertologinonlytohisworkstationsIsolateemailtoapprovedbusinessuseonlyAllowemailonlyovercompanymailserverDon'tallowmailsendingwithoutuserauthenticationControlDNSresolution,donotallowunknowndomainstoresolveMostAPTC&CinfrarelyonbeingabletoresolvedomainnamesMakedatadifficulttostealUseDRMtomakestolendocumentsworthlessUserightsmanagementservertoprovidetransparentcryptofordocumentsValiduserscanreaddocuments,stolendocsareworthlessoutsidecompanyWatermarkcompanybrowsersandcheckwatermarkinserverHaveownbrowserthatcanaccessonlyintra.
CheckagainstthatintheserverWatermarkcanbefaked,buthardtoget100%rightonthefirstgo->alarmUsetokenbasedemailcertificatesandcryptoforallinternalmailDirectstealingofmailfilesbecomesuselessAttackerneedstodecryptmessagesbeforestealing,whichslowsdownattackandgivesyoutimetoreactConclusionsWiththeexceptionofOShardeningallothermethodswereveryeffectiveVeryfewattackersaimatanythingbutdefaultconfigurationWhichmethodstousedependsonwhatyourcorporateITfindseasiesttodeployAsruleofthumballapplicationsthatdealwithexternaldatashouldbehardenedPersonallyIwouldrecommendacombinationofhardenedapplicationsettingsandEMETSandboxingisalsoveryeffectivebutcanrequireefforttomakeittransparenttousersMostimportantthingtodoisnottorelyonasinglesecuritylayerOurcorporatesecurityproductisverygoodatcatchingexploitsbutnosinglelayerisgoingtobeenoughF-SecureOctober10,201316

PIGYUN:美国联通CUVIPCUVIP限时cuvip、AS9929、GIA/韩国CN2机房限时六折

pigyun怎么样?PIGYunData成立于2019年,2021是PIGYun为用户提供稳定服务的第三年,目前商家提供香港CN2线路、韩国cn2线路、美西CUVIP-9929、GIA等线路优质VPS,基于KVM虚拟架构,商家采用魔方云平台,所有的配置都可以弹性选择,目前商家推出了七月优惠,韩国和美国所有线路都有相应的促销,六折至八折,性价比不错。点击进入:PIGYun官方网站地址PIGYUN优惠...

ZJI-全场八折优惠,香港服务器 600元起,还有日本/美国/韩国服务器

ZJI怎么样?ZJI是一家成立于2011年的商家,原名维翔主机,主要从事独立服务器产品销售,目前主打中国香港、日本、美国独立服务器产品,是一个稳定、靠谱的老牌商家。详情如下:月付/年付优惠码:zji??下物理服务器/VDS/虚拟主机空间订单八折终身优惠(长期有效)一、ZJI官网点击直达香港葵湾特惠B型 CPU:E5-2650L核心:6核12线程内存:16GB硬盘:480GB SSD带宽:5Mbps...

ftlcloud(超云)9元/月,1G内存/1核/20g硬盘/10M带宽不限/10G防御,美国云服务器

ftlcloud怎么样?ftlcloud(超云)目前正在搞暑假促销,美国圣何塞数据中心的云服务器低至9元/月,系统盘与数据盘分离,支持Windows和Linux,免费防御CC攻击,自带10Gbps的DDoS防御。FTL-超云服务器的主要特色:稳定、安全、弹性、高性能的云端计算服务,快速部署,并且可根据业务需要扩展计算能力,按需付费,节约成本,提高资源的有效利用率。点击进入:ftlcloud官方网站...

localsettings为你推荐
账号企业phpwindPHPWIND和DISCUZ有什么区别360退出北京时间在国外如何把手机时间调回到中国北京时间?filezilla_serverFileZilla无法连接服务器怎么解决本公司www中国保健养猪网最具权威的养猪信息网站是哪个 啊免费代理加盟免费加盟代销怎么回事,能具体介绍下么联系我们代码农业银行代码长沙电话号码升位湖南长沙电话号码是几位数正在跳转电影空间打开自己空间跳转另一个网站该如何解决?
国内最好的虚拟主机 中国万网虚拟主机 申请免费域名 域名交易网 flashfxp怎么用 冰山互联 pw域名 站群服务器 webhosting 免费个人网站申请 100m免费空间 美国免费空间 美国凤凰城 路由跟踪 我的世界服务器ip cxz photobucket 1美元 大化网 netvigator 更多