{"id":17470,"date":"2024-08-27T09:26:56","date_gmt":"2024-08-27T05:56:56","guid":{"rendered":"https:\/\/liangroup.net\/blog\/?p=17470"},"modified":"2024-08-27T09:26:56","modified_gmt":"2024-08-27T05:56:56","slug":"stealthy-sedexp-linux-malware-evaded-detection-for-two-years","status":"publish","type":"post","link":"https:\/\/liangroup.net\/blog\/stealthy-sedexp-linux-malware-evaded-detection-for-two-years\/","title":{"rendered":"\u0628\u062f\u0627\u0641\u0632\u0627\u0631 \u0644\u06cc\u0646\u0648\u06a9\u0633\u06cc \u0628\u0647 \u0646\u0627\u0645 sedexp \u0628\u0647 \u0637\u0648\u0631 \u0645\u062e\u0641\u06cc\u0627\u0646\u0647 \u0628\u0647 \u0645\u062f\u062a \u06f2 \u0633\u0627\u0644 \u0641\u0639\u0627\u0644 \u0628\u0648\u062f\u0647 \u0627\u0633\u062a."},"content":{"rendered":"

\u06cc\u06a9 \u0628\u062f\u0627\u0641\u0632\u0627\u0631 \u0645\u062e\u0641\u06cc\u0627\u0646\u0647 \u0644\u06cc\u0646\u0648\u06a9\u0633\u06cc \u0628\u0647 \u0646\u0627\u0645 “sedexp” \u0627\u0632 \u0633\u0627\u0644 \u06f2\u06f0\u06f2\u06f2 \u062a\u0627\u06a9\u0646\u0648\u0646 \u0628\u0627 \u0627\u0633\u062a\u0641\u0627\u062f\u0647 \u0627\u0632 \u06cc\u06a9 \u062a\u06a9\u0646\u06cc\u06a9 \u067e\u0627\u06cc\u062f\u0627\u0631\u06cc \u0647\u0645\u0686\u0646\u0627\u0646 \u0641\u0639\u0627\u0644 \u0645\u06cc \u0628\u0627\u0634\u062f.\u00a0<\/span><\/p>\n

\u0627\u06cc\u0646 \u0628\u062f\u0627\u0641\u0632\u0627\u0631 \u062a\u0648\u0633\u0637 \u0634\u0631\u06a9\u062a \u0645\u062f\u06cc\u0631\u06cc\u062a \u0631\u06cc\u0633\u06a9 Stroz Friedberg \u06a9\u0647 \u0645\u062a\u0639\u0644\u0642 \u0628\u0647 \u0634\u0631\u06a9\u062a \u0628\u06cc\u0645\u0647 Aon \u0627\u0633\u062a\u060c \u06a9\u0634\u0641 \u0634\u062f\u0647 \u0627\u0633\u062a. \u0627\u06cc\u0646 \u0628\u062f\u0627\u0641\u0632\u0627\u0631 \u0628\u0647 \u0645\u0647\u0627\u062c\u0645\u0627\u0646 \u0627\u062c\u0627\u0632\u0647 \u0645\u06cc\u200c\u062f\u0647\u062f \u062a\u0627 reverse shell \u0627\u06cc\u062c\u0627\u062f \u06a9\u0646\u0646\u062f\u060c \u06a9\u0647 \u0627\u0632 \u0637\u0631\u06cc\u0642 \u0622\u0646 \u0645\u06cc\u200c\u062a\u0648\u0627\u0646\u0646\u062f \u0627\u0632 \u0631\u0627\u0647 \u062f\u0648\u0631 \u0628\u0647 \u0633\u06cc\u0633\u062a\u0645 \u062f\u0633\u062a\u0631\u0633\u06cc \u067e\u06cc\u062f\u0627 \u06a9\u0646\u0646\u062f \u0648 \u062d\u0645\u0644\u0647 \u0631\u0627 \u0627\u062f\u0627\u0645\u0647 \u062f\u0647\u0646\u062f.<\/span><\/p>\n

\u0645\u062d\u0642\u0642\u0627\u0646 \u0627\u0634\u0627\u0631\u0647 \u0645\u06cc\u200c\u06a9\u0646\u0646\u062f \u06a9\u0647 \u062f\u0631 \u0632\u0645\u0627\u0646 \u0646\u0648\u0634\u062a\u0646 \u0627\u06cc\u0646 \u06af\u0632\u0627\u0631\u0634\u060c \u062a\u06a9\u0646\u06cc\u06a9 \u067e\u0627\u06cc\u062f\u0627\u0631\u06cc \u0627\u0633\u062a\u0641\u0627\u062f\u0647 \u0634\u062f\u0647 ( \u0642\u0648\u0627\u0646\u06cc\u0646 udev \u00a0) \u0647\u0646\u0648\u0632 \u062a\u0648\u0633\u0637 \u0686\u0627\u0631\u0686\u0648\u0628 MITRE ATT&CK \u0645\u0633\u062a\u0646\u062f\u0633\u0627\u0632\u06cc \u0646\u0634\u062f\u0647 \u0627\u0633\u062a. \u0627\u06cc\u0646 \u0646\u06a9\u062a\u0647 \u0646\u0634\u0627\u0646 \u0645\u06cc\u200c\u062f\u0647\u062f \u06a9\u0647 sedexp \u06cc\u06a9 \u062a\u0647\u062f\u06cc\u062f \u067e\u06cc\u0634\u0631\u0641\u062a\u0647 \u0627\u0633\u062a \u06a9\u0647 \u0628\u0647 \u0635\u0648\u0631\u062a \u0622\u0634\u06a9\u0627\u0631 \u0648\u0644\u06cc \u067e\u0646\u0647\u0627\u0646 \u0639\u0645\u0644 \u0645\u06cc\u200c\u06a9\u0646\u062f.<\/span><\/p>\n

\u0628\u062f\u0627\u0641\u0632\u0627\u0631 \u0627\u0632 \u0637\u0631\u06cc\u0642 \u0642\u0648\u0627\u0646\u06cc\u0646 udev \u062f\u0631 \u0633\u06cc\u0633\u062a\u0645 \u0628\u0627\u0642\u06cc \u0645\u06cc\u200c\u0645\u0627\u0646\u062f \u0648 \u067e\u0627\u06cc\u062f\u0627\u0631\u06cc \u062e\u0648\u062f \u0631\u0627 \u062d\u0641\u0638 \u0645\u06cc\u200c\u06a9\u0646\u062f.<\/span><\/p>\n

‘udev’ \u06cc\u06a9 \u0633\u06cc\u0633\u062a\u0645 \u0645\u062f\u06cc\u0631\u06cc\u062a \u062f\u0633\u062a\u06af\u0627\u0647 \u0628\u0631\u0627\u06cc \u0647\u0633\u062a\u0647 \u0644\u06cc\u0646\u0648\u06a9\u0633 \u0627\u0633\u062a \u06a9\u0647 \u0645\u0633\u0626\u0648\u0644 \u0645\u062f\u06cc\u0631\u06cc\u062a \u06af\u0631\u0647\u200c\u0647\u0627\u06cc \u062f\u0633\u062a\u06af\u0627\u0647 (device nodes) \u062f\u0631 \u062f\u0627\u06cc\u0631\u06a9\u062a\u0648\u0631\u06cc \/dev \u0645\u06cc\u200c\u0628\u0627\u0634\u062f. \u0627\u06cc\u0646 \u062f\u0627\u06cc\u0631\u06a9\u062a\u0648\u0631\u06cc \u0634\u0627\u0645\u0644 \u0641\u0627\u06cc\u0644\u200c\u0647\u0627\u06cc\u06cc \u0627\u0633\u062a \u06a9\u0647 \u0646\u0645\u0627\u06cc\u0627\u0646\u06af\u0631 \u0627\u062c\u0632\u0627\u06cc \u0633\u062e\u062a\u200c\u0627\u0641\u0632\u0627\u0631\u06cc \u0645\u0648\u062c\u0648\u062f \u062f\u0631 \u0633\u06cc\u0633\u062a\u0645 \u0647\u0633\u062a\u0646\u062f\u060c \u0645\u0627\u0646\u0646\u062f \u062f\u0631\u0627\u06cc\u0648\u0647\u0627\u06cc \u0630\u062e\u06cc\u0631\u0647\u200c\u0633\u0627\u0632\u06cc\u060c \u0631\u0627\u0628\u0637\u200c\u0647\u0627\u06cc \u0634\u0628\u06a9\u0647\u060c \u0648 \u062f\u0631\u0627\u06cc\u0648\u0647\u0627\u06cc USB<\/span><\/p>\n

\u00a0\u00a0Node files \u0628\u0647\u200c\u0637\u0648\u0631 \u062f\u06cc\u0646\u0627\u0645\u06cc\u06a9 \u0627\u06cc\u062c\u0627\u062f \u0648 \u062d\u0630\u0641 \u0645\u06cc\u200c\u0634\u0648\u0646\u062f\u060c \u0632\u0645\u0627\u0646\u06cc \u06a9\u0647 \u06a9\u0627\u0631\u0628\u0631 \u062f\u0633\u062a\u06af\u0627\u0647\u06cc \u0631\u0627 \u0628\u0647 \u0633\u06cc\u0633\u062a\u0645 \u0645\u062a\u0635\u0644 \u06cc\u0627 \u0627\u0632 \u0622\u0646 \u062c\u062f\u0627 \u0645\u06cc\u200c\u06a9\u0646\u062f. \u0647\u0645\u0686\u0646\u06cc\u0646\u060c udev \u0645\u0633\u0626\u0648\u0644 \u0628\u0627\u0631\u06af\u0630\u0627\u0631\u06cc \u062f\u0631\u0627\u06cc\u0648\u0631\u0647\u0627\u06cc \u0645\u0646\u0627\u0633\u0628 \u0628\u0631\u0627\u06cc \u0627\u06cc\u0646 \u062f\u0633\u062a\u06af\u0627\u0647\u200c\u0647\u0627 \u0627\u0633\u062a.<\/span><\/p>\n

\u0642\u0648\u0627\u0646\u06cc\u0646 udev \u0641\u0627\u06cc\u0644\u200c\u0647\u0627\u06cc \u067e\u06cc\u06a9\u0631\u0628\u0646\u062f\u06cc \u0645\u062a\u0646\u06cc \u0647\u0633\u062a\u0646\u062f \u06a9\u0647 \u0645\u0634\u062e\u0635 \u0645\u06cc\u200c\u06a9\u0646\u0646\u062f \u0645\u062f\u06cc\u0631 (udev) \u0628\u0627\u06cc\u062f \u0686\u06af\u0648\u0646\u0647 \u0628\u0627 \u062f\u0633\u062a\u06af\u0627\u0647\u200c\u0647\u0627 \u06cc\u0627 \u0631\u0648\u06cc\u062f\u0627\u062f\u0647\u0627\u06cc \u062e\u0627\u0635 \u0628\u0631\u062e\u0648\u0631\u062f \u06a9\u0646\u062f. \u0627\u06cc\u0646 \u0641\u0627\u06cc\u0644\u200c\u0647\u0627 \u062f\u0631 \u062f\u0627\u06cc\u0631\u06a9\u062a\u0648\u0631\u06cc\u200c\u0647\u0627\u06cc \/etc\/udev\/rules.d\/ \u06cc\u0627 \/lib\/udev\/rules.d\/ \u0642\u0631\u0627\u0631 \u062f\u0627\u0631\u0646\u062f.<\/span><\/p>\n

\u0627\u06cc\u0646 \u0642\u0648\u0627\u0646\u06cc\u0646 \u0634\u0627\u0645\u0644 \u0633\u0647 \u067e\u0627\u0631\u0627\u0645\u062a\u0631 \u0647\u0633\u062a\u0646\u062f \u06a9\u0647 \u06a9\u0627\u0631\u0628\u0631\u062f \u0622\u0646\u0647\u0627 \u0631\u0627 \u0645\u0634\u062e\u0635 \u0645\u06cc\u200c\u06a9\u0646\u0646\u062f:<\/span><\/p>\n

    \n
  1. ACTION==”add” : \u067e\u0627\u0631\u0627\u0645\u062a\u0631 \u0627\u0648\u0644 \u0645\u0634\u062e\u0635 \u0645\u06cc\u200c\u06a9\u0646\u062f \u06a9\u0647 \u0642\u0627\u0646\u0648\u0646 \u0628\u0631\u0627\u06cc \u0631\u0648\u06cc\u062f\u0627\u062f \u0627\u0641\u0632\u0648\u062f\u0646 \u062f\u0633\u062a\u06af\u0627\u0647 (\u06cc\u0639\u0646\u06cc \u0632\u0645\u0627\u0646\u06cc \u06a9\u0647 \u062f\u0633\u062a\u06af\u0627\u0647 \u062c\u062f\u06cc\u062f\u06cc \u0628\u0647 \u0633\u06cc\u0633\u062a\u0645 \u0645\u062a\u0635\u0644 \u0645\u06cc\u200c\u0634\u0648\u062f) \u0627\u0639\u0645\u0627\u0644 \u0645\u06cc\u200c\u0634\u0648\u062f.<\/span><\/li>\n
  2. KERNEL==”sdb1″ : \u067e\u0627\u0631\u0627\u0645\u062a\u0631 \u062f\u0648\u0645 \u0646\u0627\u0645 \u062f\u0633\u062a\u06af\u0627\u0647 \u0631\u0627 \u0645\u0634\u062e\u0635 \u0645\u06cc\u200c\u06a9\u0646\u062f. \u062f\u0631 \u0627\u06cc\u0646 \u0645\u062b\u0627\u0644\u060c \u062f\u0633\u062a\u06af\u0627\u0647\u06cc \u06a9\u0647 \u0646\u0627\u0645 \u0622\u0646 sdb1 \u0627\u0633\u062a\u060c \u0647\u062f\u0641 \u0627\u06cc\u0646 \u0642\u0627\u0646\u0648\u0646 \u0627\u0633\u062a.<\/span><\/li>\n
  3. RUN+=”\/path\/to\/script” : \u067e\u0627\u0631\u0627\u0645\u062a\u0631 \u0633\u0648\u0645 \u062a\u0639\u06cc\u06cc\u0646 \u0645\u06cc\u200c\u06a9\u0646\u062f \u06a9\u0647 \u0686\u0647 \u0627\u0633\u06a9\u0631\u06cc\u067e\u062a\u06cc \u0628\u0627\u06cc\u062f \u0632\u0645\u0627\u0646\u06cc \u06a9\u0647 \u0634\u0631\u0627\u06cc\u0637 \u0645\u0634\u062e\u0635 \u0634\u062f\u0647 \u0628\u0631\u0642\u0631\u0627\u0631 \u0634\u062f\u060c \u0627\u062c\u0631\u0627 \u0634\u0648\u062f.<\/span><\/li>\n<\/ol>\n

    \u0627\u06cc\u0646 \u0642\u0627\u0646\u0648\u0646 \u0647\u0631 \u0628\u0627\u0631 \u06a9\u0647 \u06cc\u06a9 \u062f\u0633\u062a\u06af\u0627\u0647 \u062c\u062f\u06cc\u062f \u0628\u0647 \u0633\u06cc\u0633\u062a\u0645 \u0627\u0636\u0627\u0641\u0647 \u0645\u06cc\u200c\u0634\u0648\u062f \u0641\u0639\u0627\u0644 \u0645\u06cc\u200c\u0634\u0648\u062f \u0648 \u0628\u0631\u0631\u0633\u06cc \u0645\u06cc\u200c\u06a9\u0646\u062f \u06a9\u0647 \u0622\u06cc\u0627 \u0634\u0645\u0627\u0631\u0647\u200c\u0647\u0627\u06cc \u0627\u0635\u0644\u06cc \u0648 \u0641\u0631\u0639\u06cc \u062f\u0633\u062a\u06af\u0627\u0647 \u0628\u0627 \u0634\u0645\u0627\u0631\u0647\u200c\u0647\u0627\u06cc \u0645\u0631\u0628\u0648\u0637 \u0628\u0647 \/dev\/random \u0645\u0637\u0627\u0628\u0642\u062a \u062f\u0627\u0631\u062f \u06cc\u0627 \u062e\u06cc\u0631. \/dev\/random \u06a9\u0647 \u0647\u0646\u06af\u0627\u0645 \u0631\u0627\u0647\u200c\u0627\u0646\u062f\u0627\u0632\u06cc \u0633\u06cc\u0633\u062a\u0645 \u0628\u0627\u0631\u06af\u0630\u0627\u0631\u06cc \u0645\u06cc\u200c\u0634\u0648\u062f\u060c \u0628\u0647 \u0639\u0646\u0648\u0627\u0646 \u06cc\u06a9 \u062a\u0648\u0644\u06cc\u062f\u06a9\u0646\u0646\u062f\u0647 \u0639\u062f\u062f \u062a\u0635\u0627\u062f\u0641\u06cc \u062a\u0648\u0633\u0637 \u0686\u0646\u062f\u06cc\u0646 \u0628\u0631\u0646\u0627\u0645\u0647 \u0648 \u0641\u0631\u0622\u06cc\u0646\u062f\u0647\u0627\u06cc \u0633\u06cc\u0633\u062a\u0645\u06cc \u0627\u0633\u062a\u0641\u0627\u062f\u0647 \u0645\u06cc\u200c\u0634\u0648\u062f.<\/span><\/p>\n

    \u0628\u0627 \u0627\u0633\u062a\u0641\u0627\u062f\u0647 \u0627\u0632 \/dev\/random \u0628\u0647 \u0639\u0646\u0648\u0627\u0646 \u06cc\u06a9 \u0634\u0631\u0637 \u0628\u0631\u0627\u06cc \u0627\u062c\u0631\u0627\u06cc \u0627\u0633\u06a9\u0631\u06cc\u067e\u062a \u0628\u062f\u0627\u0641\u0632\u0627\u0631\u060c \u0645\u0647\u0627\u062c\u0645\u0627\u0646 \u0628\u0647 \u0637\u0648\u0631 \u0645\u062f\u0627\u0648\u0645 \u0648 \u0645\u06a9\u0631\u0631 \u0628\u062f\u0627\u0641\u0632\u0627\u0631 \u0631\u0627 \u0641\u0639\u0627\u0644 \u0646\u06af\u0647 \u0645\u06cc\u200c\u062f\u0627\u0631\u0646\u062f.<\/span><\/p>\n

    \u0628\u06cc\u0634 \u0627\u0632 \u0647\u0645\u0647\u060c \/dev\/random \u06cc\u06a9 \u062c\u0632\u0621 \u0627\u0633\u0627\u0633\u06cc \u0633\u06cc\u0633\u062a\u0645 \u062f\u0631 \u0644\u06cc\u0646\u0648\u06a9\u0633 \u0627\u0633\u062a \u06a9\u0647 \u0631\u0627\u0647\u200c\u062d\u0644\u200c\u0647\u0627\u06cc \u0627\u0645\u0646\u06cc\u062a\u06cc \u0622\u0646 \u0631\u0627 \u062a\u062d\u062a \u0646\u0638\u0627\u0631\u062a \u0642\u0631\u0627\u0631 \u0646\u0645\u06cc\u200c\u062f\u0647\u0646\u062f. \u0628\u0647 \u0647\u0645\u06cc\u0646 \u062f\u0644\u06cc\u0644\u060c \u0633\u0648\u0621\u0627\u0633\u062a\u0641\u0627\u062f\u0647 \u0627\u0632 \u0622\u0646 \u062a\u0636\u0645\u06cc\u0646 \u0645\u06cc\u200c\u06a9\u0646\u062f \u06a9\u0647 \u0628\u062f\u0627\u0641\u0632\u0627\u0631 \u0642\u0627\u062f\u0631 \u0628\u0647 \u0627\u062c\u062a\u0646\u0627\u0628 \u0627\u0632 \u0634\u0646\u0627\u0633\u0627\u06cc\u06cc \u0627\u0633\u062a.<\/span><\/p>\n

    \"\"<\/p>\n

    \u062a\u0648\u0627\u0646\u0627\u06cc\u06cc\u200c\u0647\u0627\u06cc \u0639\u0645\u0644\u06cc\u0627\u062a\u06cc \u0627\u0635\u0644\u06cc<\/strong><\/h2>\n

    \u0628\u062f\u0627\u0641\u0632\u0627\u0631 \u0646\u0627\u0645 \u0641\u0631\u0622\u06cc\u0646\u062f \u062e\u0648\u062f \u0631\u0627 \u00abkdevtmpfs\u00bb \u0645\u06cc\u200c\u06af\u0630\u0627\u0631\u062f\u060c \u06a9\u0647 \u0645\u0634\u0627\u0628\u0647 \u06cc\u06a9 \u0641\u0631\u0622\u06cc\u0646\u062f \u0642\u0627\u0646\u0648\u0646\u06cc \u0633\u06cc\u0633\u062a\u0645 \u0627\u0633\u062a. \u0627\u06cc\u0646 \u06a9\u0627\u0631 \u0628\u0627\u0639\u062b \u0645\u06cc\u200c\u0634\u0648\u062f \u06a9\u0647 \u0628\u062f\u0627\u0641\u0632\u0627\u0631 \u0628\u0627 \u0641\u0639\u0627\u0644\u06cc\u062a\u200c\u0647\u0627\u06cc \u0639\u0627\u062f\u06cc \u0633\u06cc\u0633\u062a\u0645 \u062a\u0631\u06a9\u06cc\u0628 \u0634\u0648\u062f \u0648 \u0634\u0646\u0627\u0633\u0627\u06cc\u06cc \u0622\u0646 \u0628\u0627 \u0627\u0633\u062a\u0641\u0627\u062f\u0647 \u0627\u0632 \u0631\u0648\u0634\u200c\u0647\u0627\u06cc \u0645\u0639\u0645\u0648\u0644 \u062f\u0634\u0648\u0627\u0631\u062a\u0631 \u0634\u0648\u062f.<\/span><\/p>\n

    \"\"<\/p>\n

    \u062f\u0631 \u0645\u0648\u0631\u062f \u062a\u0648\u0627\u0646\u0627\u06cc\u06cc\u200c\u0647\u0627\u06cc \u0639\u0645\u0644\u06cc\u0627\u062a\u06cc \u062e\u0648\u062f\u060c \u0628\u062f\u0627\u0641\u0632\u0627\u0631 \u0627\u0632 \u06cc\u06a9\u06cc \u0627\u0632 \u062f\u0648 \u0631\u0648\u0634 \u00a0forkpty \u06cc\u0627 \u00a0pipes \u0648 \u06cc\u06a9 \u0641\u0631\u0622\u06cc\u0646\u062f \u062c\u062f\u06cc\u062f fork \u0634\u062f\u0647 \u0627\u0633\u062a\u0641\u0627\u062f\u0647 \u0645\u06cc\u200c\u06a9\u0646\u062f \u062a\u0627 \u06cc\u06a9 reverse shell \u0628\u0631\u0627\u06cc \u0645\u0647\u0627\u062c\u0645 \u0631\u0627\u0647\u200c\u0627\u0646\u062f\u0627\u0632\u06cc \u06a9\u0646\u062f \u0648 \u0628\u0647 \u0627\u0648 \u0627\u062c\u0627\u0632\u0647 \u062f\u0647\u062f \u06a9\u0647 \u0628\u0647\u200c\u0637\u0648\u0631 \u0627\u0632 \u0631\u0627\u0647 \u062f\u0648\u0631 \u0628\u0647 \u062f\u0633\u062a\u06af\u0627\u0647 \u0622\u0644\u0648\u062f\u0647 \u062f\u0633\u062a\u0631\u0633\u06cc \u067e\u06cc\u062f\u0627 \u06a9\u0646\u062f.<\/span><\/p>\n

    \u0628\u062f\u0627\u0641\u0632\u0627\u0631 Sedexp \u0647\u0645\u0686\u0646\u06cc\u0646 \u0627\u0632 \u062a\u06a9\u0646\u06cc\u06a9\u200c\u0647\u0627\u06cc \u062f\u0633\u062a\u06a9\u0627\u0631\u06cc \u062d\u0627\u0641\u0638\u0647 \u0628\u0631\u0627\u06cc \u067e\u0646\u0647\u0627\u0646 \u06a9\u0631\u062f\u0646 \u0647\u0631 \u0641\u0627\u06cc\u0644\u06cc \u06a9\u0647 \u0634\u0627\u0645\u0644 \u0631\u0634\u062a\u0647 “sedexp” \u0627\u0633\u062a \u0627\u0632 \u062f\u0633\u062a\u0648\u0631\u0647\u0627\u06cc \u0627\u0633\u062a\u0627\u0646\u062f\u0627\u0631\u062f\u06cc \u0645\u0627\u0646\u0646\u062f ls \u06cc\u0627 find \u0627\u0633\u062a\u0641\u0627\u062f\u0647 \u0645\u06cc\u200c\u06a9\u0646\u062f\u060c \u0628\u0647 \u0637\u0648\u0631\u06cc \u06a9\u0647 \u062d\u0636\u0648\u0631 \u0622\u0646 \u062f\u0631 \u0633\u06cc\u0633\u062a\u0645 \u0645\u062e\u0641\u06cc \u0628\u0645\u0627\u0646\u062f.<\/span><\/p>\n

    \u0628\u062f\u0627\u0641\u0632\u0627\u0631 \u0642\u0627\u062f\u0631 \u0627\u0633\u062a \u0645\u062d\u062a\u0648\u0627\u06cc \u062d\u0627\u0641\u0638\u0647 \u0631\u0627 \u062a\u063a\u06cc\u06cc\u0631 \u062f\u0647\u062f \u062a\u0627 \u06a9\u062f \u0645\u062e\u0631\u0628 \u0631\u0627 \u0628\u0647 \u0633\u06cc\u0633\u062a\u0645 \u0648\u0627\u0631\u062f \u06a9\u0646\u062f \u06cc\u0627 \u0646\u062d\u0648\u0647 \u0639\u0645\u0644\u06a9\u0631\u062f \u0628\u0631\u0646\u0627\u0645\u0647\u200c\u0647\u0627 \u0648 \u0641\u0631\u0622\u06cc\u0646\u062f\u0647\u0627\u06cc \u0633\u06cc\u0633\u062a\u0645\u06cc \u06a9\u0647 \u0642\u0628\u0644\u0627\u064b \u0648\u062c\u0648\u062f \u062f\u0627\u0631\u0646\u062f \u0631\u0627 \u062a\u063a\u06cc\u06cc\u0631 \u062f\u0647\u062f.<\/span><\/p>\n

    \u0645\u062d\u0642\u0642\u0627\u0646 \u0627\u0634\u0627\u0631\u0647 \u0645\u06cc\u200c\u06a9\u0646\u0646\u062f \u06a9\u0647 \u0627\u06cc\u0646 \u0628\u062f\u0627\u0641\u0632\u0627\u0631 \u0627\u0632 \u0633\u0627\u0644 \u06f2\u06f0\u06f2\u06f2 \u062f\u0631 \u062f\u0646\u06cc\u0627\u06cc \u0648\u0627\u0642\u0639\u06cc \u0645\u0648\u0631\u062f \u0627\u0633\u062a\u0641\u0627\u062f\u0647 \u0642\u0631\u0627\u0631 \u06af\u0631\u0641\u062a\u0647 \u0627\u0633\u062a. \u0622\u0646\u0647\u0627 \u0645\u062a\u0648\u062c\u0647 \u0634\u062f\u0646\u062f \u06a9\u0647 \u0627\u06cc\u0646 \u0628\u062f\u0627\u0641\u0632\u0627\u0631 \u062f\u0631 \u0628\u0633\u06cc\u0627\u0631\u06cc \u0627\u0632 \u0645\u062d\u06cc\u0637\u200c\u0647\u0627\u06cc \u0622\u0632\u0645\u0627\u06cc\u0634\u06cc \u0622\u0646\u0644\u0627\u06cc\u0646 ( sandboxes ) \u0648\u062c\u0648\u062f \u062f\u0627\u0631\u062f \u0648 \u0634\u0646\u0627\u0633\u0627\u06cc\u06cc \u0646\u0634\u062f\u0647 \u0627\u0633\u062a ( \u062f\u0631 VirusTotal\u060c \u0641\u0642\u0637 \u062f\u0648 \u0645\u0648\u062a\u0648\u0631 \u0622\u0646\u062a\u06cc\u200c\u0648\u06cc\u0631\u0648\u0633 \u0627\u0632 \u0628\u06cc\u0646 \u0633\u0647 \u0646\u0645\u0648\u0646\u0647 \u0645\u0648\u062c\u0648\u062f \u0627\u0632 \u0628\u062f\u0627\u0641\u0632\u0627\u0631 sedexp \u0631\u0627 \u0628\u0647 \u0639\u0646\u0648\u0627\u0646 \u0645\u062e\u0631\u0628 \u0634\u0646\u0627\u0633\u0627\u06cc\u06cc \u06a9\u0631\u062f\u0647\u200c\u0627\u0646\u062f ).<\/span><\/p>\n

    \u0628\u0631 \u0627\u0633\u0627\u0633 \u06af\u0632\u0627\u0631\u0634 Stroz Friedberg\u060c \u0627\u06cc\u0646 \u0628\u062f\u0627\u0641\u0632\u0627\u0631 \u0628\u0631\u0627\u06cc \u067e\u0646\u0647\u0627\u0646 \u06a9\u0631\u062f\u0646 \u06a9\u062f\u0647\u0627\u06cc \u0627\u0633\u062a\u062e\u0631\u0627\u062c \u0627\u0637\u0644\u0627\u0639\u0627\u062a \u06a9\u0627\u0631\u062a\u200c\u0647\u0627\u06cc \u0627\u0639\u062a\u0628\u0627\u0631\u06cc ( credit card scraping ) \u062f\u0631 \u0633\u0631\u0648\u0631\u0647\u0627\u06cc \u0648\u0628 \u0622\u0633\u06cc\u0628\u200c\u062f\u06cc\u062f\u0647 \u0627\u0633\u062a\u0641\u0627\u062f\u0647 \u0634\u062f\u0647 \u0627\u0633\u062a\u060c \u06a9\u0647 \u0646\u0634\u0627\u0646\u200c\u062f\u0647\u0646\u062f\u0647 \u062f\u062e\u0627\u0644\u062a \u0622\u0646 \u062f\u0631 \u062d\u0645\u0644\u0627\u062a \u0645\u0627\u0644\u06cc \u0627\u0633\u062a.<\/span><\/p>\n

     <\/p>\n

     <\/p>\n","protected":false},"excerpt":{"rendered":"

    \u06cc\u06a9 \u0628\u062f\u0627\u0641\u0632\u0627\u0631 \u0645\u062e\u0641\u06cc\u0627\u0646\u0647 \u0644\u06cc\u0646\u0648\u06a9\u0633\u06cc \u0628\u0647 \u0646\u0627\u0645 “sedexp” \u0627\u0632 \u0633\u0627\u0644 \u06f2\u06f0\u06f2\u06f2 \u062a\u0627\u06a9\u0646\u0648\u0646 \u0628\u0627 \u0627\u0633\u062a\u0641\u0627\u062f\u0647 \u0627\u0632 \u06cc\u06a9 \u062a\u06a9\u0646\u06cc\u06a9 \u067e\u0627\u06cc\u062f\u0627\u0631\u06cc \u0647\u0645\u0686\u0646\u0627\u0646 \u0641\u0639\u0627\u0644 \u0645\u06cc \u0628\u0627\u0634\u062f.\u00a0 \u0627\u06cc\u0646 \u0628\u062f\u0627\u0641\u0632\u0627\u0631 \u062a\u0648\u0633\u0637 \u0634\u0631\u06a9\u062a \u0645\u062f\u06cc\u0631\u06cc\u062a \u0631\u06cc\u0633\u06a9 Stroz Friedberg \u06a9\u0647 \u0645\u062a\u0639\u0644\u0642 \u0628\u0647 \u0634\u0631\u06a9\u062a \u0628\u06cc\u0645\u0647 Aon \u0627\u0633\u062a\u060c \u06a9\u0634\u0641 \u0634\u062f\u0647 \u0627\u0633\u062a. \u0627\u06cc\u0646 \u0628\u062f\u0627\u0641\u0632\u0627\u0631 \u0628\u0647 \u0645\u0647\u0627\u062c\u0645\u0627\u0646 \u0627\u062c\u0627\u0632\u0647 \u0645\u06cc\u200c\u062f\u0647\u062f \u062a\u0627 reverse shell \u0627\u06cc\u062c\u0627\u062f \u06a9\u0646\u0646\u062f\u060c \u06a9\u0647 \u0627\u0632 \u0637\u0631\u06cc\u0642 \u0622\u0646 \u0645\u06cc\u200c\u062a\u0648\u0627\u0646\u0646\u062f …<\/p>\n","protected":false},"author":14,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[21,349],"tags":[],"class_list":["post-17470","post","type-post","status-publish","format-standard","hentry","category-news","category-slides"],"yoast_head":"\n\u0628\u062f\u0627\u0641\u0632\u0627\u0631 \u0644\u06cc\u0646\u0648\u06a9\u0633\u06cc \u0628\u0647 \u0646\u0627\u0645 sedexp \u0628\u0647 \u0637\u0648\u0631 \u0645\u062e\u0641\u06cc\u0627\u0646\u0647 \u0628\u0647 \u0645\u062f\u062a \u06f2 \u0633\u0627\u0644 \u0641\u0639\u0627\u0644 \u0628\u0648\u062f\u0647 \u0627\u0633\u062a. - \u0628\u0644\u0627\u06af \u06af\u0631\u0648\u0647 \u0644\u06cc\u0627\u0646<\/title>\n<meta name=\"description\" content=\"\u06cc\u06a9 \u0628\u062f\u0627\u0641\u0632\u0627\u0631 \u0645\u062e\u0641\u06cc\u0627\u0646\u0647 \u0644\u06cc\u0646\u0648\u06a9\u0633\u06cc \u0628\u0647 \u0646\u0627\u0645 "sedexp" \u0627\u0632 \u0633\u0627\u0644 2022 \u062a\u0627\u06a9\u0646\u0648\u0646 \u0628\u0627 \u0627\u0633\u062a\u0641\u0627\u062f\u0647 \u0627\u0632 \u06cc\u06a9 \u062a\u06a9\u0646\u06cc\u06a9 \u067e\u0627\u06cc\u062f\u0627\u0631\u06cc \u0647\u0645\u0686\u0646\u0627\u0646 \u0641\u0639\u0627\u0644 \u0645\u06cc \u0628\u0627\u0634\u062f.\u00a0\" \/>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/liangroup.net\/blog\/stealthy-sedexp-linux-malware-evaded-detection-for-two-years\/\" \/>\n<meta property=\"og:locale\" content=\"fa_IR\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"\u0628\u062f\u0627\u0641\u0632\u0627\u0631 \u0644\u06cc\u0646\u0648\u06a9\u0633\u06cc \u0628\u0647 \u0646\u0627\u0645 sedexp \u0628\u0647 \u0637\u0648\u0631 \u0645\u062e\u0641\u06cc\u0627\u0646\u0647 \u0628\u0647 \u0645\u062f\u062a \u06f2 \u0633\u0627\u0644 \u0641\u0639\u0627\u0644 \u0628\u0648\u062f\u0647 \u0627\u0633\u062a.\" \/>\n<meta property=\"og:description\" content=\"\u06cc\u06a9 \u0628\u062f\u0627\u0641\u0632\u0627\u0631 \u0645\u062e\u0641\u06cc\u0627\u0646\u0647 \u0644\u06cc\u0646\u0648\u06a9\u0633\u06cc \u0628\u0647 \u0646\u0627\u0645 "sedexp" \u0627\u0632 \u0633\u0627\u0644 2022 \u062a\u0627\u06a9\u0646\u0648\u0646 \u0628\u0627 \u0627\u0633\u062a\u0641\u0627\u062f\u0647 \u0627\u0632 \u06cc\u06a9 \u062a\u06a9\u0646\u06cc\u06a9 \u067e\u0627\u06cc\u062f\u0627\u0631\u06cc \u0647\u0645\u0686\u0646\u0627\u0646 \u0641\u0639\u0627\u0644 \u0645\u06cc \u0628\u0627\u0634\u062f.\u00a0\" \/>\n<meta property=\"og:url\" content=\"https:\/\/liangroup.net\/blog\/stealthy-sedexp-linux-malware-evaded-detection-for-two-years\/\" \/>\n<meta property=\"og:site_name\" content=\"\u0628\u0644\u0627\u06af \u06af\u0631\u0648\u0647 \u0644\u06cc\u0627\u0646\" \/>\n<meta property=\"article:published_time\" content=\"2024-08-27T05:56:56+00:00\" \/>\n<meta property=\"og:image\" content=\"https:\/\/liangroup.net\/blog\/wp-content\/uploads\/2024\/08\/2-33-300x214.webp\" \/>\n<meta name=\"author\" content=\"\u0633\u062c\u0627\u062f \u062a\u06cc\u0645\u0648\u0631\u06cc\" \/>\n<meta name=\"twitter:card\" content=\"summary_large_image\" \/>\n<meta name=\"twitter:creator\" content=\"@liansecurity\" \/>\n<meta name=\"twitter:site\" content=\"@liansecurity\" \/>\n<meta name=\"twitter:label1\" content=\"\u0646\u0648\u0634\u062a\u0647\u200c\u0634\u062f\u0647 \u0628\u062f\u0633\u062a\" \/>\n\t<meta name=\"twitter:data1\" content=\"\u0633\u062c\u0627\u062f \u062a\u06cc\u0645\u0648\u0631\u06cc\" \/>\n\t<meta name=\"twitter:label2\" content=\"\u0632\u0645\u0627\u0646 \u062a\u0642\u0631\u06cc\u0628\u06cc \u0628\u0631\u0627\u06cc \u062e\u0648\u0627\u0646\u062f\u0646\" \/>\n\t<meta name=\"twitter:data2\" content=\"5 \u062f\u0642\u06cc\u0642\u0647\" \/>\n<script type=\"application\/ld+json\" class=\"yoast-schema-graph\">{\"@context\":\"https:\\\/\\\/schema.org\",\"@graph\":[{\"@type\":\"Article\",\"@id\":\"https:\\\/\\\/liangroup.net\\\/blog\\\/stealthy-sedexp-linux-malware-evaded-detection-for-two-years\\\/#article\",\"isPartOf\":{\"@id\":\"https:\\\/\\\/liangroup.net\\\/blog\\\/stealthy-sedexp-linux-malware-evaded-detection-for-two-years\\\/\"},\"author\":{\"name\":\"\u0633\u062c\u0627\u062f \u062a\u06cc\u0645\u0648\u0631\u06cc\",\"@id\":\"https:\\\/\\\/liangroup.net\\\/blog\\\/#\\\/schema\\\/person\\\/e328f67a35a843fd3accc4666b5eab0a\"},\"headline\":\"\u0628\u062f\u0627\u0641\u0632\u0627\u0631 \u0644\u06cc\u0646\u0648\u06a9\u0633\u06cc \u0628\u0647 \u0646\u0627\u0645 sedexp \u0628\u0647 \u0637\u0648\u0631 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