{"id":788,"date":"2025-10-24T14:57:50","date_gmt":"2025-10-24T06:57:50","guid":{"rendered":"https:\/\/www.youvii.site\/?p=788"},"modified":"2025-10-24T15:00:38","modified_gmt":"2025-10-24T07:00:38","slug":"wenjianshangchuan","status":"publish","type":"post","link":"https:\/\/www.youvii.site\/index.php\/archives\/wenjianshangchuan","title":{"rendered":"\u6587\u4ef6\u4e0a\u4f20"},"content":{"rendered":"

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<?php\n  if ($_FILES[\"file\"][\"error\"] > 0)\n{\n  echo \"Error: \" . $_FILES[\"file\"][\"error\"] . \"<br \/>\";\n  }\n  else\n{\n  echo \"Upload: \" . $_FILES[\"file\"][\"name\"] . \"<br \/>\";\necho \"Type: \" . $_FILES[\"file\"][\"type\"] . \"<br \/>\";\necho \"Size: \" . ($_FILES[\"file\"][\"size\"] \/ 1024) . \" Kb<br \/>\";\necho \"Stored in: \" . $_FILES[\"file\"][\"tmp_name\"];\n}\n?><\/code><\/pre>\n
<html>\n  <head><\/head>\n  <body>\n    <form action=\"upload.php\" method=\"post\" enctype=\"multipart\/form-data\">\n      <label for=\"file\">Filename:<\/label>\n      <input type=\"file\" name=\"file\" id=\"file\" \/>\n      <br \/>\n      <input type=\"submit\" name=\"submit\" value=\"Submit\" \/>\n    <\/form>\n  <\/body>\n<\/html><\/code><\/pre>\n
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asp\nasa\ncdx\ncer\nphp\naspx\nashx\njsp\nphp3\nphp.a\nshtml\nphtml<\/code><\/pre>\n
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aspasp asaspp<\/p>\n
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\u53ef\u83b7\u5f97 webshell<\/p>\n
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\"1746003554636-c91e0a91-f316-4d63-a600-7d053d41f897.png\"<\/p>\n
content-type\u68c0\u6d4b\u4e0a\u4f20\u653b\u51fb<\/h3>\n
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https:\/\/www.runoob.com\/http\/http-content-type.html<\/a><\/p>\n
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$deny_ext =<\/p>\n
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NTFS\u4ea4\u6362\u6570\u636e\u6d41::$DATA\u653b\u51fb\u7ed5\u8fc7\u4e0a\u4f20<\/h3>\n
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\u53cc\u5199\u540e\u7f00\u540d\u7ed5\u8fc7\u4e0a\u4f20<\/h2>\n
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\u6587\u4ef6\u4e0a\u4f20\u53cc\u5199\u7ed5\u8fc7\u6f0f\u6d1e\u5206\u6790<\/h3>\n
\"1746004368028-b9373ef8-7ed3-4473-b099-b7963b2a18ac.png\"<\/p>\n
\u540c\u6837\u662f\u9ed1\u540d\u5355\u8fc7\u6ee4\u3002str_ireplace \u5bf9\u4e0a\u4f20\u7684\u540e\u7f00\u540d\u662f\u9ed1\u540d\u5355\u5185\u7684\u5b57\u7b26\u4e32\u8f6c\u6362\u6210\u7a7a\u3002<\/p>\n
\u6587\u4ef6\u4e0a\u4f20\u53cc\u5199\u7ed5\u8fc7\u653b\u51fb<\/h3>\n
\u6293\u5305\u4e0a\u4f20\uff0c\u628a\u540e\u7f00\u540d\u6539\u6210 pphphp \u5373\u53ef\u7ed5\u8fc7\u4e0a\u4f20<\/p>\n
\"1746004388579-e92dcb73-d1b0-459c-bf04-f19af68a8e93.png\"<\/p>\n
\u76ee\u5f55\u53ef\u63a7%00 \u622a\u65ad\u7ed5\u8fc7\u4e0a\u4f20<\/h2>\n
\u4ee5\u4e0a\u90fd\u662f\u4e00\u4e9b\u9ed1\u540d\u5355\u88ab\u7ed5\u8fc7\u7684\uff0c\u5982\u679c\u9ed1\u540d\u5355\u4e0a\u4f20\u68c0\u6d4b\u540e\uff0c\u6ca1\u6709\u9650\u5b9a\u540e\u7f00\u540d\uff0c\u7ed5\u8fc7\u7684\u65b9\u6cd5\u5f88\u591a\uff0c\u4e0e\u9ed1\u540d\u5355\u76f8\u5bf9\u7684\u5c31\u662f\u767d\u540d\u5355\uff0c\u4f7f\u7528\u767d\u540d\u5355\u9a8c\u8bc1\u4f1a\u76f8\u5bf9\u6bd4\u8f83\u5b89\u5168\uff0c\u56e0\u4e3a\u53ea\u5141\u8bb8\u6307\u5b9a\u7684\u6587\u4ef6\u540e\u7f00\u540d\u3002\u4f46\u662f\u5982\u679c\u6709\u53ef\u63a7\u7684\u53c2\u6570\u76ee\u5f55\uff0c\u4e5f\u5b58\u5728\u88ab\u7ed5\u8fc7\u7684\u98ce\u9669\u3002<\/p>\n
\u4e0a\u4f20\u53c2\u6570\u76ee\u5f55\u53ef\u63a7\u4ee3\u7801\u5206\u6790<\/h3>\n
\"1746004417812-ce39224d-4de2-4771-8e07-4104c8fd8952.png\"<\/p>\n
\u4ee3\u7801\u4e2d\u4f7f\u7528\u767d\u540d\u5355\u9650\u5236\u4e0a\u4f20\u7684\u6587\u4ef6\u540e\u7f00\u540d\uff0c\u53ea\u5141\u8bb8\u6307\u5b9a\u7684\u56fe\u7247\u683c\u5f0f\u3002\u4f46\u662f$_GET[‘save_path’]\u670d\u52a1\u5668\u63a5\u53d7\u5ba2\u6237\u7aef\u7684\u503c\uff0c\u8fd9\u4e2a\u503c\u53ef\u88ab\u5ba2\u6237\u7aef\u4fee\u6539\u3002\u6240\u4ee5\u4f1a\u7559\u4e0b\u5b89\u5168\u95ee\u9898\u3002<\/p>\n
\u6587\u4ef6\u4e0a\u4f20\u53c2\u6570\u76ee\u5f55\u53ef\u63a7\u653b\u51fb<\/h3>\n
\u4e0a\u4f20\u53c2\u6570\u53ef\u63a7<\/p>\n
\u5f53 gpc \u5173\u95ed\u7684\u60c5\u51b5\u4e0b\uff0c\u53ef\u4ee5\u7528%00 \u5bf9\u76ee\u5f55\u6216\u8005\u6587\u4ef6\u540d\u8fdb\u884c\u622a\u65ad\u3002 php \u7248\u672c\u5c0f\u4e8e 5.3.4<\/p>\n
\u9996\u5148\u622a\u65ad\u653b\u51fb\uff0c\u6293\u5305\u4e0a\u4f20\u5c06%00 \u81ea\u52a8\u622a\u65ad\u540e\u95e8\u5185\u5bb9\u3002<\/p>\n
\u4f8b\u5982 1.php%00.1.jpg \u53d8\u6210 1.php<\/p>\n
\u76ee\u5f55\u53ef\u63a7 POST \u7ed5\u8fc7\u4e0a\u4f20<\/h2>\n
\u4e0a\u9762\u662f GET \u8bf7\u6c42\u7684\uff0c\u53ef\u4ee5\u76f4\u63a5\u5728 url \u8f93\u5165%00 \u5373\u53ef\u622a\u65ad\uff0c\u4f46\u662f\u5728 post \u4e0b\u76f4\u63a5\u6ce8\u5165%00 \u662f\u4e0d\u884c\u7684\uff0c\u9700\u8981\u628a%00 \u89e3\u7801\u53d8\u6210\u7a7a\u767d\u7b26\uff0c\u622a\u65ad\u624d\u6709\u6548\u3002\u624d\u80fd\u628a\u76ee\u5f55\u622a\u65ad\u6210\u6587\u4ef6\u540d<\/p>\n
\u76ee\u5f55\u53ef\u63a7 post \u4e0a\u4f20\u4ee3\u7801\u5206\u6790\"1746004497676-b9ab64dd-5048-4623-953f-90dea4607ea4.png\"<\/h3>\n
\u8fd9\u6bb5\u4ee3\u7801\u540c\u6837\u662f\u767d\u540d\u5355\u9650\u5236\u540e\u7f00\u540d\uff0c$_POST[‘save_path’]\u662f\u63a5\u6536\u5ba2\u6237\u7aef\u63d0\u4ea4\u7684\u503c\uff0c<\/p>\n
\u5ba2\u6237\u7aef\u53ef\u4efb\u610f\u4fee\u6539\u3002\u6240\u4ee5\u4f1a\u4ea7\u751f\u5b89\u5168\u6f0f\u6d1e\u3002<\/p>\n
\u76ee\u5f55\u53ef\u63a7\u4e0a\u4f20\u653b\u51fb<\/h3>\n
\u6587\u4ef6\u540d\u53ef\u63a7\uff0c\u901a\u8fc7\u6293\u5305\u4fee\u6539\u53ef\u63a7\u7684\u53c2\u6570\uff0c\u4e0e\u4e0d\u540c\u7684\u4e2d\u95f4\u4ef6\u7684\u7f3a\u9677\u914d\u5408\u4f7f\u7528\u3002<\/p>\n
\u4f7f\u7528%00 \u622a\u65ad\u6587\u4ef6\u540d \u518d post \u73af\u5883\u4e0b%00 \u8981\u7ecf\u8fc7 decode \u4f46\u662f\u53d7 gpc \u9650\u5236<\/p>\n
\u4f7f\u7528 burpsutie POST %00 \u622a\u65ad\u6587\u4ef6\u540d<\/p>\n
\"1746004523437-17fb5884-42bf-422f-9105-cf05a081a048.png\"<\/p>\n
\u5982\u679c\u76ee\u5f55\u5f53\u524d\u76ee\u5f55\u4e0d\u80fd\u89e3\u6790\u811a\u672c\uff0c\u53ef\u4ee5\u79fb\u52a8\u5230\u5176\u4ed6\u76ee\u5f55\u518d\u8fdb\u884c\u622a\u65ad\u63d0\u4ea4\u3002<\/p>\n
\u6587\u4ef6\u5934\u68c0\u6d4b\u7ed5\u8fc7\u4e0a\u4f20<\/h2>\n
\u6709\u7684\u6587\u4ef6\u4e0a\u4f20\uff0c\u4e0a\u4f20\u65f6\u5019\u4f1a\u68c0\u6d4b\u5934\u6587\u4ef6\uff0c\u4e0d\u540c\u7684\u6587\u4ef6\uff0c\u5934\u6587\u4ef6\u4e5f\u4e0d\u5c3d\u76f8\u540c\u3002\u5e38\u89c1<\/p>\n
\u7684\u6587\u4ef6\u4e0a\u4f20\u56fe\u7247\u5934\u68c0\u6d4b \u5b83\u68c0\u6d4b\u56fe\u7247\u662f\u4e24\u4e2a\u5b57\u8282\u7684\u957f\u5ea6\uff0c\u5982\u679c\u4e0d\u662f\u56fe\u7247\u7684\u683c\u5f0f\uff0c<\/p>\n
\u4f1a\u7981\u6b62\u4e0a\u4f20\u3002<\/p>\n
\u5e38\u89c1\u7684\u6587\u4ef6\u5934<\/p>\n
JPEG (jpg)\uff0c\u6587\u4ef6\u5934\uff1aFFD8FF<\/p>\n
PNG (png)\uff0c\u6587\u4ef6\u5934\uff1a89504E47<\/p>\n
GIF (gif)\uff0c\u6587\u4ef6\u5934\uff1a47494638<\/p>\n
TIFF (tif)\uff0c\u6587\u4ef6\u5934\uff1a49492A00<\/p>\n
Windows Bitmap (bmp)\uff0c\u6587\u4ef6\u5934\uff1a424D<\/p>\n
\u6587\u4ef6\u5934\u68c0\u6d4b\u4e0a\u4f20\u4ee3\u7801\u5206\u6790<\/h3>\n
\u8fd9\u4e2a\u662f\u5b58\u5728\u6587\u4ef6\u5934\u68c0\u6d4b\u7684\u4e0a\u4f20\uff0cgetReailFileType \u662f\u68c0\u6d4b jpg\u3001png\u3001gif \u7684\u6587\u4ef6\u5934<\/p>\n
\"1746004570751-eaf94552-2a6a-42d0-a1a6-e369a47473ab.png\"\u5982\u679c\u4e0a\u4f20\u7684\u6587\u4ef6\u7b26\u5408\u6570\u5b57\u5373\u53ef\u901a\u8fc7\u68c0\u6d4b\u3002<\/p>\n
\u6587\u4ef6\u5934\u68c0\u6d4b\u7ed5\u8fc7\u4f20\u653b\u51fb\u65b9\u6cd5<\/h3>\n
1.\u5236\u4f5c\u56fe\u7247\u4e00\u53e5\u8bdd\uff0c\u4f7f\u7528 copy 1.gif\/b+moon.php shell.php \u5c06 php \u6587\u4ef6\u9644\u52a0\u518d jpg\u56fe\u7247\u4e0a\uff0c\u76f4\u63a5\u4e0a\u4f20\u5373\u53ef\u3002<\/p>\n
\"1746004624438-9732ae2e-e2de-430c-9584-20e873fc1e2e.png\"\u56e0\u4e3a\u9650\u5236\u4e86\u540e\u7f00\u4e3a jpg\uff0c\u53ef\u4ee5\u8003\u8651\u6587\u4ef6\u5305\u542b\u5c06\u56fe\u7247\u6587\u4ef6\u5305\u542b\u8fdb\u53bb getshell\"1746004645664-0f01bec8-6842-4f9f-bbaf-9c7a021034c5.png\"<\/p>\n
burpsuite \u4e0a\u4f20\u7684\u6570\u636e\u5305\u5934\u52a0\u4e0a GIF89a<\/p>\n
\"1746004658253-c6c68a1b-b9a3-4caa-a83b-f41927e4448d.png\"<\/p>\n
\u56fe\u7247\u68c0\u6d4b\u51fd\u6570\u7ed5\u8fc7\u4e0a\u4f20<\/h2>\n
\u67e5\u770b\u4ee3\u7801<\/p>\n
\"1746004674172-44ed8648-5709-421b-b783-c178eff5621b.png\"<\/p>\n
getimagesize \u662f\u83b7\u53d6\u56fe\u7247\u7684\u5927\u5c0f\uff0c\u5982\u679c\u5934\u6587\u4ef6\u4e0d\u662f\u56fe\u7247\u4f1a\u62a5\u9519\u76f4\u63a5\u53ef\u4ee5\u7528\u56fe\u7247\u9a6c\u7ed5\u8fc7\u68c0\u6d4b<\/p>\n
\u518d\u7528\u6587\u4ef6\u5305\u542b\u6f0f\u6d1e\u5f15\u5165 jpeg \u56fe\u7247\u5373\u53ef getshell<\/p>\n
\u7ed5\u8fc7\u56fe\u7247\u4e8c\u6b21\u6e32\u67d3\u4e0a\u4f20<\/h2>\n
\u6709\u4e9b\u56fe\u7247\u4e0a\u4f20\uff0c\u4f1a\u5bf9\u4e0a\u4f20\u7684\u56fe\u7247\u8fdb\u884c\u4e8c\u6b21\u6e32\u67d3\u540e\u5728\u4fdd\u5b58\uff0c\u4f53\u79ef\u53ef\u80fd\u4f1a\u66f4\u5c0f\uff0c\u56fe\u7247\u4f1a\u6a21\u7cca\u4e00\u4e9b\uff0c\u4f46\u662f\u7b26\u5408\u7f51\u7ad9\u7684\u9700\u6c42\u3002\u4f8b\u5982\u65b0\u95fb\u56fe\u7247\u5c01\u9762\u7b49\u53ef\u80fd\u9700\u8981\u4e8c\u6b21\u6e32\u67d3\uff0c\u56e0\u4e3a\u539f\u56fe\u7247\u5360\u7528\u7684\u4f53\u79ef\u66f4\u5927\u3002\u8bbf\u95ee\u7684\u4eba\u6570\u592a\u591a\u65f6\u5019\u4f1a\u5360\u7528\uff0c\u5f88\u5927\u5e26\u5bbd\u3002\u4e8c\u6b21\u6e32\u67d3\u540e\u7684\u56fe\u7247\u5185\u5bb9\u4f1a\u51cf\u5c11\uff0c\u5982\u679c\u91cc\u9762\u5305\u542b\u540e\u95e8\u4ee3\u7801\uff0c\u53ef\u80fd\u4f1a\u88ab\u7701\u7565\u3002\u5bfc\u81f4\u4e0a\u4f20\u7684\u56fe\u7247\u9a6c\uff0c\u6076\u610f\u4ee3\u7801\u88ab\u6e05\u9664\u3002<\/p>\n
\u56fe\u7247\u4e8c\u6b21\u6e32\u67d3\u5206\u6790\u4ee3\u7801<\/h3>\n
\"1746004722254-a6fbeb71-3ae4-4831-8d34-a6c89a6d354a.png\"<\/p>\n
\"1746004729199-f83d964c-8c26-4090-8f30-7c8370d6dacf.png\"<\/p>\n
\u53ea\u5141\u8bb8\u4e0a\u4f20 JPG PNG gif \u5728\u6e90\u7801\u4e2d\u4f7f\u7528 imagecreatefromgif \u51fd\u6570\u5bf9\u56fe\u7247\u8fdb\u884c\u4e8c\u6b21\u751f\u6210\u3002\u751f\u6210\u7684\u56fe\u7247\u4fdd\u5b58\u5728\uff0cupload \u76ee\u5f55\u4e0b\u3002<\/p>\n
\u7ed5\u8fc7\u56fe\u7247\u4e8c\u6b21\u6e32\u67d3\u653b\u51fb<\/h3>\n
\u9996\u5148\u5224\u65ad\u56fe\u7247\u662f\u5426\u5141\u8bb8\u4e0a\u4f20 gif\uff0cgif \u56fe\u7247\u5728\u4e8c\u6b21\u6e32\u67d3\u540e\uff0c\u4e0e\u539f\u56fe\u7247\u5dee\u522b\u4e0d\u4f1a\u592a\u5927\u3002<\/p>\n
\u6240\u4ee5\u4e8c\u6b21\u6e32\u67d3\u653b\u51fb\u6700\u597d\u7528 git \u56fe\u7247\u9a6c\u3002<\/p>\n
\u5236\u4f5c\u56fe\u7247\u9a6c<\/p>\n
\u5c06\u539f\u56fe\u7247\u4e0a\u4f20\uff0c\u4e0b\u8f7d\u6e32\u67d3\u540e\u7684\u56fe\u7247\u8fdb\u884c\u5bf9\u6bd4\uff0c\u627e\u76f8\u540c\u5904\uff0c\u8986\u76d6\u5b57\u7b26\u4e32\uff0c\u586b\u5199\u4e00\u53e5<\/p>\n
\u8bdd\u540e\u95e8\uff0c\u6216\u8005\u6076\u610f\u6307\u4ee4\u3002<\/p>\n
\"1746004765639-7f28079d-394e-460f-841c-970dca8c2987.png\"<\/p>\n
\u539f\u56fe\u7247\u4e0e\u6e32\u67d3\u540e\u7684\u56fe\u7247\u8fd9\u4e2a\u4f4d\u7f6e\u7684\u5b57\u7b26\u4e32\u6ca1\u6709\u6539\u53d8\u6240\u5728\u539f\u56fe\u7247\u8fd9\u91cc\u66ff\u6362\u6210<?<\/p>\n
php phpinfo();?>\u76f4\u63a5\u4e0a\u4f20\u5373\u53ef\u3002<\/p>\n
\"1746004777053-be95f3a9-7a11-48c7-968c-58ebe70391a6.png\"<\/p>\n
\u6587\u4ef6\u4e0a\u4f20\u6761\u4ef6\u7ade\u4e89\u6f0f\u6d1e\u7ed5\u8fc7<\/h2>\n
\u5728 \u6587 \u4ef6 \u4e0a \u4f20 \u65f6 \uff0c \u5982 \u679c \u903b \u8f91 \u4e0d \u5bf9 \uff0c \u4f1a \u9020 \u6210 \u5f88 \u5927 \u5371 \u5bb3 \uff0c \u4f8b \u5982 \u6587 \u4ef6 \u4e0a \u4f20 \u65f6 \uff0c \u7528move_uploaded_file \u628a\u4e0a\u4f20\u7684\u4e34\u65f6\u6587\u4ef6\u79fb\u52a8\u5230\u6307\u5b9a\u76ee\u5f55\uff0c\u63a5\u7740\u518d\u7528 rename \u6587\u4ef6\u8bbe\u7f6e\u4e3a\u56fe\u7247\u683c\u5f0f\uff0c\u5982\u679c\u5728 rename \u4e4b\u524d move_uploaded_file \u8fd9\u4e2a\u6b65\u9aa4 \u5982\u679c\u8fd9\u4e2a\u6587\u4ef6\u53ef\u88ab\u5ba2\u6237\u7aef\u8bbf\u95ee\uff0c\u8fd9\u6837\u6211\u4eec\u4e5f\u53ef\u4ee5\u83b7\u53d6\u4e00\u4e2a webshell\u3002<\/p>\n
\u6587\u4ef6\u4e0a\u4f20\u6761\u4ef6\u7ade\u4e89\u6e90\u7801\u5206\u6790<\/h3>\n
\"1746004803814-6a37a1e7-97cb-46fa-93ab-e5b57015667d.png\"<\/p>\n
\u91c7\u7528\u767d\u540d\u5355\u4e0a\u4f20\uff0c$upload_file = UPLOAD_PATH . ‘\/’ . $file_name; \u8bbe\u7f6e\u4e0a\u4f20\u8def\u5f84\uff0c\u540e\u7f00\u540d\u6ca1\u6709\u9650\u5b9a\u4e3a\u56fe\u7247\u7c7b\u578b\uff0c\u63a5\u7740 move_uploaded_file($temp_file, $upload_file)\u5c06\u56fe\u7247\u79fb\u52a8\u6307\u5b9a\u7684\u76ee\u5f55\uff0c\u63a5\u7740\u4f7f\u7528 rename \u91cd\u540d\u4e3a\u56fe\u7247\u7c7b\u578b\u3002\u5728\u91cd\u540d\u4e4b\u524d\u5982\u679c\u88ab\u6d4f\u89c8\u5668\u8bbf\u95ee\uff0c\u53ef\u4ee5\u5f97\u5230\u4e00\u4e2a webshell<\/p>\n
\u6587\u4ef6\u4e0a\u4f20\u6761\u4ef6\u7ade\u4e89\u653b\u51fb\u65b9\u6cd5<\/h3>\n
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<?php\n  $file= $_GET['save_name'];\necho $file_name = reset($file) . '.' . $file[count($file) - 1];\n?><\/code><\/pre>\n
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Apache HTTPD \u6362\u884c\u89e3\u6790\u6f0f\u6d1e\uff08CVE-2017-15715\uff09<\/p>\n
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\n
\u66f4\u65b0: 2025-05-03 19:56:48
\n\u539f\u6587: https:\/\/www.yuque.com\/yuhui.net\/network\/awtbxlnblhgrzpro<\/a><\/p>\n<\/blockquote>\n","protected":false},"excerpt":{"rendered":"
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