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DDoSã«é–¢ã™ã‚‹test_testerã®ãƒ–ãƒƒã‚¯ãƒžãƒ¼ã‚¯ (9)

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JPãƒ‰ãƒ¡ã‚¤ãƒ³åã‚’æ¨™çš„ã¨ã—ãŸâ€œDNSæ°´è²¬ã‚æ”»æ’ƒâ€ã‚’ç¢ºèªã€JPCERT/CCå®šç‚¹è¦³æ¸¬ãƒ¬ãƒãƒ¼ãƒˆã€€
test_tester 2015/04/28
JPCERT

DNS

domain

open-resolver

DDoS

network

security

report
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ã‚¢ãƒ¡ãƒªã‚«ã‚„ä¸å›½ã‚„ãƒ–ãƒ©ã‚¸ãƒ«ã‹ã‚‰æ”»æ’ƒã‹ã‚‰DOSæ”»æ’ƒãŒã‚ã£ãŸã¿ãŸã„ã€‚ Facebook, Instagram, Tinder, other sites all down apparently due to a huge DDOS attack. http://t.co/Amvp7BCxuZ pic.twitter.com/GcNMlCUZGS â€” Avinash Kunnath (@avinashkunnath) January 27, 2015 FacebookãŒè½ã¡ãŸã®ã¯2015å¹´1æœˆ27æ—¥15æ™‚20åˆ†é ƒã‹ã‚‰ã“ã®æ™‚é–“ã‹ã‚‰ã‚µã‚¤ãƒˆãŒè½ã¡ãŸä¸€æ™‚é–“ãã‚‰ã„è½ã¡ã¦ãŸã¨ã„ã†ã“ã¨ã‹ãƒ»ãƒ» FacebookãŒç¹‹ãŒã‚‰ãªã„ã€‚ã‚µã‚¤ãƒˆè½ã¡ãŸï¼Ÿè½ã¡ãŸã€‚16ï¼š10å¾©æ´»ã—ãŸã€‚ 3:20 PM JSTã€€ã‹ã‚‰ã€€Facebookã€€ã«éšœå®³ãŒç™ºç”Ÿ 3:27 PM JSTã€€ã‹ã‚‰ã€€Instagramã€€ã«éšœå®³ãŒç™ºç”Ÿ 4:10 PM JSTã€€
test_tester 2015/01/31
Facebook

Instagram

DDoS

security

internet

attack

case
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2014å¹´7æœˆæœ«ä»¥é™ã€è¦å¯Ÿåºã‚„ã‚»ã‚ãƒ¥ãƒªãƒ†ã‚£ãƒ™ãƒ³ãƒ€ãƒ¼ã®ãƒ©ãƒƒã‚¯ãªã©ãŒã€å›½å†…ã§DDoSï¼ˆDistributed Denial of Servicesï¼šåˆ†æ•£ã‚µãƒ¼ãƒ“ã‚¹å¦¨å®³ï¼‰æ”»æ’ƒãŒç›¸æ¬¡ã„ã§ã„ã‚‹ã¨ã—ã¦æ³¨æ„ã‚’å‘¼ã³ã‹ã‘ã¦ã„ã‚‹ã€‚è¿‘å¹´ã®DDoSæ”»æ’ƒã®ç‰¹å¾´ã¯ã€æ‰‹å£ãŒå¤šæ§˜åŒ–ã—ã¦ã„ã‚‹ã“ã¨ã€‚ä¼æ¥ã‚„çµ„ç¹”ãŒé‹ç”¨ã™ã‚‹ã‚µãƒ¼ãƒãƒ¼ã ã‘ã§ã¯ãªãã€ä¸€èˆ¬ãƒ¦ãƒ¼ã‚¶ãƒ¼ãŒé‹ç”¨ã™ã‚‹ãƒ›ãƒ¼ãƒ ãƒ«ãƒ¼ã‚¿ãƒ¼ï¼ˆãƒ–ãƒãƒ¼ãƒ‰ãƒãƒ³ãƒ‰ãƒ«ãƒ¼ã‚¿ãƒ¼ï¼‰ãŒè¸ã¿å°ã«ãªã‚‹ã“ã¨ã‚‚ã‚ã‚‹ã€‚DDoSæ”»æ’ƒã®è„…å¨ã‚’ä½Žæ¸›ã•ã›ã‚‹ã«ã¯ã€å…¨ã¦ã®ãƒ¦ãƒ¼ã‚¶ãƒ¼ãŒæ³¨æ„ã™ã‚‹å¿…è¦ãŒã‚ã‚‹ã€‚ æ”»æ’ƒãƒ‡ãƒ¼ã‚¿ã‚’å¢—å¹…ã™ã‚‹ã€Œãƒªãƒ•ãƒ¬ã‚¯ã‚¿ãƒ¼ã€ DDoSæ”»æ’ƒã¨ã¯ã€ä¼æ¥ã‚„çµ„ç¹”ãŒé‹å–¶ã™ã‚‹ã‚µãƒ¼ãƒãƒ¼ãªã©ã«å¤§é‡ã®ãƒ‡ãƒ¼ã‚¿ã‚’ä¸€æ–‰ã«é€ä¿¡ã—ã¦ã€ãã®ã‚µãƒ¼ãƒãƒ¼ã‚’åˆ©ç”¨ä¸èƒ½ã«ã™ã‚‹æ”»æ’ƒã®ã“ã¨ã€‚ä»¥å‰ã¯ã€DDoSæ”»æ’ƒã¯ã€Œãƒœãƒƒãƒˆãƒãƒƒãƒˆã€ã¨å‘¼ã°ã‚Œã‚‹ã€è¤‡æ•°ã®ã‚¦ã‚¤ãƒ«ã‚¹æ„ŸæŸ“ãƒ‘ã‚½ã‚³ãƒ³ã‚’ä½¿ã£ã¦è¡Œã‚ã‚Œã‚‹ã“ã¨ãŒå¤šã‹ã£ãŸã€‚æ”»æ’ƒè€…ã¯ã€ã‚ã‚‰ã‹ã˜ã‚å¤šæ•°ã®ãƒ‘ã‚½ã‚³ãƒ³ã«ã‚¦ã‚¤ãƒ«ã‚¹ã‚’æ„ŸæŸ“ã•ã›ã¦ä¹—ã£å–ã‚Šã€
test_tester 2014/08/18
DDoS

network

attack

security

bot-net

reflector

router

explain

trend
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ã‚ªãƒ¼ãƒ—ãƒ³ãƒªã‚¾ãƒ«ãƒãƒ¼ï½žæ£è¦ã‚ãƒ£ãƒƒã‚·ãƒ¥DNSã‚µãƒ¼ãƒãƒ¼çµŒç”±ã®2æ®µéšŽDDoSæ”»æ’ƒã‹ï¼Ÿã€€è¦å¯ŸåºãŒæ€ªã—ã„ãƒ‘ã‚±ãƒƒãƒˆã®å¢—åŠ ã‚’è¦³æ¸¬
test_tester 2014/07/25
DDoS

DNS

open-resolver

server

security
ãƒªãƒ³ã‚¯
NTP ãƒªãƒ•ãƒ¬ã‚¯ã‚·ãƒ§ãƒ³æ”»æ’ƒã‚’è§£æžã—ã¦ã¿ã‚‹
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test_tester 2014/03/18
DDoS

NTP

network

security

server

analysis

explain
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ã‚¯ãƒ©ã‚¦ãƒ‰äº‹æ¥è€…ã®ç±³ã‚¯ãƒ©ã‚¦ãƒ‰ãƒ•ãƒ¬ã‚¢ã¯2014å¹´2æœˆä¸æ—¬ã€åŒç¤¾ã®é¡§å®¢ãŒé‹ç”¨ã™ã‚‹ã‚µãƒ¼ãƒãƒ¼ã«å¯¾ã—ã¦ã€æœ€å¤§ã§400ã‚®ã‚¬ãƒ“ãƒƒãƒˆ/ç§’ã¨ã„ã†å‰ä¾‹ã®ãªã„è¦æ¨¡ã®DDoSï¼ˆåˆ†æ•£ã‚µãƒ¼ãƒ“ã‚¹å¦¨å®³ï¼‰æ”»æ’ƒãŒä»•æŽ›ã‘ã‚‰ã‚ŒãŸã“ã¨ã‚’æ˜Žã‚‰ã‹ã«ã—ãŸã€‚ä¼æ¥ãªã©ãŒé‹ç”¨ã™ã‚‹NTPã‚µãƒ¼ãƒãƒ¼ï¼ˆæ™‚åˆ»åŒæœŸã‚µãƒ¼ãƒãƒ¼ï¼‰ãŒã€æ”»æ’ƒã®è¸ã¿å°ã¨ã—ã¦æ‚ªç”¨ã•ã‚ŒãŸã¨ã„ã†ã€‚ NTPã‚µãƒ¼ãƒãƒ¼ã¨ã¯ã€ã‚³ãƒ³ãƒ”ãƒ¥ãƒ¼ã‚¿ãƒ¼ã‚„ãƒãƒƒãƒˆãƒ¯ãƒ¼ã‚¯æ©Ÿå™¨ã®æ™‚åˆ»ã‚’åŒæœŸã™ã‚‹ãŸã‚ã®ã‚µãƒ¼ãƒãƒ¼ã‚½ãƒ•ãƒˆã€‚åŒã‚½ãƒ•ãƒˆãŒç¨¼åƒã™ã‚‹ã‚µãƒ¼ãƒãƒ¼æ©Ÿã‚’æŒ‡ã™ã“ã¨ã‚‚ã‚ã‚‹ã€‚UNIXã‚„Linuxãªã©ã«æ¨™æº–ã§å«ã¾ã‚Œã‚‹ã€‚æ¨™æº–æ™‚ã‚’æä¾›ã™ã‚‹åˆ¥ã®NTPã‚µãƒ¼ãƒãƒ¼ã«ã‚¢ã‚¯ã‚»ã‚¹ã—ã¦OSã®æ™‚åˆ»ã‚’åˆã‚ã›ã‚‹ã»ã‹ã€ä»–ã®ã‚³ãƒ³ãƒ”ãƒ¥ãƒ¼ã‚¿ãƒ¼ã‹ã‚‰ã®æ™‚åˆ»ã®å•ã„åˆã‚ã›ã«ã‚‚ç”ãˆã‚‹ã€‚ NTPã‚µãƒ¼ãƒãƒ¼ã«ã¯ã€åˆ©ç”¨çŠ¶æ³ãªã©ã‚’é éš”ã‹ã‚‰ç¢ºèªã™ã‚‹ãŸã‚ã®ç®¡ç†æ©Ÿèƒ½ã‚‚ã‚ã‚‹ã€‚ãã®ä¸€ã¤ãŒã€ŒMONLISTã€æ©Ÿèƒ½ã ã€‚ã“ã®æ©Ÿèƒ½ã‚’ä½¿ã£ã¦NTPã‚µãƒ¼ãƒãƒ¼ã«å•ã„åˆã‚ã›ã‚‹ã¨ã€ãã®NTPã‚µãƒ¼ãƒãƒ¼ã«éŽåŽ»ã«ã‚¢ã‚¯ã‚»ã‚¹ã—ãŸ
test_tester 2014/03/18
DDoS

network

security

server

NPT
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ã€Œã‚ãƒ£ãƒƒã‚·ãƒ¥DNSã‚µãƒ¼ãƒãƒ¼ã®è¨å®šã‚’å¤‰æ›´ã—ã€å½“ç¤¾ã‚µãƒ¼ãƒ“ã‚¹ã®å¥‘ç´„è€…ã®ã¿ã«ã‚¢ã‚¯ã‚»ã‚¹ã‚’åˆ¶é™ã•ã›ã¦ã„ãŸã ãã¾ã™ã€â”€â”€2013å¹´8æœˆé ƒã‹ã‚‰ã€ã“ã†ã—ãŸãŠçŸ¥ã‚‰ã›ã‚’å…¬é–‹ã™ã‚‹ãƒ‡ãƒ¼ã‚¿ã‚»ãƒ³ã‚¿ãƒ¼äº‹æ¥è€…ã‚„ãƒ—ãƒãƒã‚¤ãƒ€ãƒ¼ï¼ˆISPï¼‰ãŒå‡ºã¦ããŸã€‚ã€Œã‚ªãƒ¼ãƒ—ãƒ³ãƒªã‚¾ãƒ«ãƒãƒ¼ã€ã¨å‘¼ã°ã‚Œã‚‹ã€ã€Œèª°ã§ã‚‚åˆ©ç”¨ã§ãã‚‹çŠ¶æ…‹ã€ã®ã‚ãƒ£ãƒƒã‚·ãƒ¥DNSã‚µãƒ¼ãƒãƒ¼ã‚’ãªãã™ä¸€é€£ã®å‹•ãã®ä¸€ã¤ã§ã‚ã‚‹ã€‚3æœˆé ƒã‹ã‚‰ã€ã‚ªãƒ¼ãƒ—ãƒ³ãƒªã‚¾ãƒ«ãƒãƒ¼ãŒå¤§è¦æ¨¡ãªDDoSï¼ˆDistributed Denial of Serviceï¼‰æ”»æ’ƒã«æ‚ªç”¨ã•ã‚Œã‚‹ã‚±ãƒ¼ã‚¹ãŒå‡ºã¦ããŸãŸã‚ã€å„ç¤¾ãŒå¯¾å¿œã‚’æ€¥ã„ã§ã„ã‚‹ã®ã ã€‚
test_tester 2014/03/18
DDoS

security

network

open-resolver

DNS
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test_tester 2014/03/18
DDoS

security

network

server

NTP
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WordPressã®16ä¸‡ã‚µã‚¤ãƒˆãŒå¤§è¦æ¨¡æ”»æ’ƒã®è¸ã¿å°ã«ã€ã€ŒPingbackã€æ©Ÿèƒ½æ‚ªç”¨
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test_tester 2014/03/14
WordPress

security

ping

pingback

DDoS
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