\u4ee5\u4e0b\u662f\u542f\u7528\u53d7\u63a7\u6587\u4ef6\u5939\u8bbf\u95ee\u7684PowerShell\u547d\u4ee4\uff1a<\/p>\n

Set-MpPreference -EnableControlledFolderAccess Enabled\r\n<\/code><\/pre>\n
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\u9ad8\u7ea7\u6076\u610f\u8f6f\u4ef6\u68c0\u6d4b\u6280\u672f<\/strong><\/h2>\n
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\n
\u4f7f\u7528Volatility\u7b49\u5185\u5b58\u53d6\u8bc1\u5de5\u5177\u5206\u6790\u6f5c\u5728\u7684\u5185\u5b58\u4e2d\u6076\u610f\u8f6f\u4ef6<\/li>\n
\u4f7f\u7528Sysmon\u548cElastic Stack\u5b9e\u65bd\u57fa\u4e8e\u884c\u4e3a\u7684\u68c0\u6d4b<\/li>\n
\u5f00\u53d1\u81ea\u5b9a\u4e49YARA\u89c4\u5219\u4ee5\u68c0\u6d4b\u7279\u5b9a\u7684\u6076\u610f\u8f6f\u4ef6\u7b7e\u540d<\/li>\n
\u4f7f\u7528\u673a\u5668\u5b66\u4e60\u6a21\u578b\u68c0\u6d4b\u7cfb\u7edf\u884c\u4e3a\u4e2d\u7684\u5f02\u5e38<\/li>\n<\/ul>\n
\u4ee5\u4e0b\u662f\u4e00\u4e2a\u7b80\u5355\u7684YARA\u89c4\u5219\u793a\u4f8b\uff0c\u7528\u4e8e\u68c0\u6d4b\u6f5c\u5728\u7684\u865a\u5047\u9a8c\u8bc1\u6076\u610f\u8f6f\u4ef6\uff1a<\/p>\n
rule Fake_Verification_Malware {\r\n    strings:\r\n        $fake_prompt = \"Windows Security Verification\" wide ascii\r\n        $suspicious_func = \"sendToAttacker\" wide ascii\r\n    condition:\r\n        uint16(0) == 0x5A4D and\r\n        $fake_prompt and\r\n        $suspicious_func\r\n}\r\n<\/code><\/pre>\n
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\u5728\u7ba1\u7406\u9999\u6e2f\u670d\u52a1\u5668\u79df\u7528\u5e73\u53f0\u4e0a\u7684Windows\u7cfb\u7edf\u65f6\uff0c\u4fdd\u62a4\u8fdc\u7a0b\u8bbf\u95ee\u81f3\u5173\u91cd\u8981\uff1a<\/p>\n
\n
\u4e3a\u6240\u6709\u8fdc\u7a0b\u8bbf\u95ee\u70b9\u5b9e\u65bd\u591a\u56e0\u7d20\u8ba4\u8bc1\uff08MFA\uff09<\/li>\n
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\u4e3a\u7ba1\u7406\u6743\u9650\u542f\u7528\u5373\u65f6\uff08JIT\uff09\u8bbf\u95ee<\/li>\n
\u5bf9\u8fdc\u7a0b\u4f1a\u8bdd\u5b9e\u65bd\u5168\u9762\u7684\u65e5\u5fd7\u8bb0\u5f55\u548c\u5b9e\u65f6\u8b66\u62a5<\/li>\n<\/ol>\n
\u8981\u8bbe\u7f6ePowerShell JIT\u8bbf\u95ee\u89c4\u5219\uff0c\u60a8\u53ef\u4ee5\u4f7f\u7528\u4ee5\u4e0bAzure AD PowerShell\u547d\u4ee4\uff1a<\/p>\n
New-AzureADMSPrivilegedAccessReviewDefinition `\r\n    -Scope 'Tenant' `\r\n    -ReviewerType 'Self' `\r\n    -StartDateTime (Get-Date) `\r\n    -DurationInDays 7 `\r\n    -ReviewerType 'Self' `\r\n    -RecurrenceType 'Weekly' `\r\n    -RoleDefinitionId 'roleDefinitionId' `\r\n    -IsApprovalRequired $true `\r\n    -IsAccessRecommendationEnabled $true `\r\n    -IsPrivileged $true\r\n<\/code><\/pre>\n
    [\/vc_column_text][\/vc_column][\/vc_row][vc_row el_class=”blog-detail-section”][vc_column][vc_column_text css=””] <\/p>\n
\u6301\u7eed\u76d1\u63a7\u548c\u4e8b\u4ef6\u54cd\u5e94<\/strong><\/h2>\n
\u901a\u8fc7\u6301\u7eed\u76d1\u63a7\u4fdd\u6301\u8b66\u60d5\u5bf9Windows\u5b89\u5168\u81f3\u5173\u91cd\u8981\u3002\u5b9e\u65bd\u4e00\u4e2a\u5f3a\u5927\u7684\u4e8b\u4ef6\u54cd\u5e94\u8ba1\u5212\uff0c\u5305\u62ec\uff1a<\/p>\n
\n
\u4f7f\u7528Splunk\u6216ELK\u5806\u6808\u8fdb\u884c\u5b9e\u65f6\u65e5\u5fd7\u5206\u6790<\/li>\n
\u5bf9\u53ef\u7591\u6d3b\u52a8\u6216\u7b56\u7565\u8fdd\u89c4\u8fdb\u884c\u81ea\u52a8\u8b66\u62a5<\/li>\n
\u5b9a\u671f\u8fdb\u884c\u6e17\u900f\u6d4b\u8bd5\u548c\u6f0f\u6d1e\u8bc4\u4f30<\/li>\n
\u8fdb\u884c\u4e8b\u4ef6\u54cd\u5e94\u6f14\u7ec3\u4ee5\u786e\u4fdd\u56e2\u961f\u51c6\u5907\u5c31\u7eea<\/li>\n<\/ul>\n
\u8003\u8651\u4f7f\u7528PowerShell\u81ea\u52a8\u5316\u65e5\u5fd7\u6536\u96c6\u548c\u5206\u6790\uff1a<\/p>\n
\r\n# PowerShell script for log analysis\r\n$logPath = \"C:\\Windows\\System32\\winevt\\Logs\\Security.evtx\"\r\n$criticalEvents = Get-WinEvent -FilterHashtable @{\r\n    LogName='Security'\r\n    Id=4624,4625,4688\r\n} -MaxEvents 1000\r\n\r\n$criticalEvents | Where-Object {$_.Message -match \"suspicious\"} | \r\n    Select-Object TimeCreated, Id, Message | \r\n    Export-Csv -Path \"C:\\SecurityAlerts.csv\" -NoTypeInformation\r\n<\/code><\/pre>\n
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[\/vc_column_text][\/vc_column][\/vc_row]<\/p>\n<\/div>","protected":false},"excerpt":{"rendered":"
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Read More…<\/a><\/p>\n","protected":false},"author":3,"featured_media":16488,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"footnotes":""},"categories":[62],"tags":[3768,3765,3767,583,248],"class_list":["post-16494","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-hong-kong-dedicated-server-sc","tag-fake-verification-sc-2","tag-windows-security-sc","tag-malware-detection-sc","tag-network-security-sc","tag-hong-kong-server-rental-sc"],"acf":[],"yoast_head":"\n