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ħÇØ»ç°í ´ëÀÀ¹æ¹ý ¹× ÀýÂ÷
 1day  | 2004¡¤02¡¤01 23:04 | HIT : 37,395 | VOTE : 14,616 |

 

 

ħÇØ»ç°í ´ëÀÀ¹æ¹ý

CERTCC-KR

 

cert@certcc.or.kr, http://www.certcc.or.kr

½ÅÀº°æ ¿¬±¸¿ø, sek@certcc.or.kr
ÀÌÇö¿ì ¿¬±¸¿ø, lotus@certcc.or.kr

 

[¸ñ Â÷]

1. °³¿ä

2. °ø°Ý »çÀÌÆ® ¿¬¶ôó ã±â
--°¡. µµ¸ÞÀÎÁÖ¼Ò/IPÁÖ¼Ò º¯È¯
--³ª. ¿¬¶ôó Á¶È¸ ¹× ´ëÀÀ
-- --1) ħÇØ»ç°í´ëÀÀÆÀ(CERT)¿¡ ¿¬¶ôÇϱâ
-- --2) whois ÀÌ¿ëÇϱâ
-- --3) traceroute : »óÀ§ ISP ã±â

3. ´ëÀÀ¹æ¹ý
--°¡. E-mailÀ» ÀÌ¿ëÇÑ ´ëÀÀ¹æ¹ý
--³ª. ÀüÈ­¸¦ ÀÌ¿ëÇÑ ´ëÀÀ¹æ¹ý

÷ºÎ
1. IP ÁÖ¼Òº° °ü·Ã whois ¼­¹ö Á¤º¸
2. ±¹°¡º° ÁÖ¿ä CERT ¿¬¶ôó

 

 

 

[ 1 ] °³¿ä

³×Æ®¿öÅ©/½Ã½ºÅÛ Ä§ÀԽõµ ¶Ç´Â ÇØÅ·»ç°í¸¦ ¹ß°ßÇÏ´Â °æ¿ì, ÀÌ¿¡ ´ëÀÀÇÏ´Â ¹æ¹ý¿¡´Â ´Ù¾çÇÑ ¹æ¹ýÀÌ µ¿¿øµÉ ¼ö ÀÖ´Ù. °ø°Ý È£½ºÆ®¿¡ ´ëÇؼ­ ÆÄÀ̾î¿ù/¶ó¿ìÅÍ/½Ã½ºÅÛ µî¿¡¼­ Â÷´ÜÇÏ´Â ¹æ¹ýÀÌ ÀÖÀ» ¼ö ÀÖÀ¸¸ç, °ø°Ý È£½ºÆ®¸¦ ¿ªÀ¸·Î °ø°ÝÇÏ´Â ¹æ¹ý µîÀÌ ÀÖÀ» ¼ö ÀÖ´Ù. ´ëºÎºÐÀÇ °ø°Ý »çÀÌÆ®°¡ ¶Ç ´Ù¸¥ ÇØÅ·ÀÇ ÇÇÇØÀÚ¶ó´Â Á¡¿¡¼­ ÀÌ·¯ÇÑ ¹æ¹ýÀº ÀϽÃÀûÀÎ ´ëÀÀ¹æ¹ý¹Û¿¡´Â µÉ ¼ö ¾øÀ¸¸ç, °ø°Ý »çÀÌÆ® ¹× ÇÇÇØ»çÀÌÆ® ¸ðµÎ¿¡°Ô Å« µµ¿òÀÌ µÇÁö ¾Ê´Â´Ù. ÇÏÁö¸¸ Æнº¿öµå Å©·¡Å· °ø°ÝÀ̶óµç°¡ ¶Ç´Â Áö¼ÓÀûÀÎ °ø°ÝÀ» ŽÁöÇÒ °æ¿ì¿¡´Â ¶ó¿ìÅÍ¿¡¼­ ÀÌ·¯ÇÑ °ø°Ý »çÀÌÆ®¸¦ Â÷´ÜÇÏ¿© ÀÚ½ÅÀÇ ³×Æ®¿öÅ©¸¦ º¸È£ÇÏ¿©¾ß ÇÑ´Ù.

°¡Àå ÀϹÝÀûÀ¸·Î Àνĵǰí ÀÖ´Â ´ëÀÀ¹æ¹ýÀº °ø°Ý»çÀÌÆ®¿Í Á¢ÃËÇÏ¿© ´ëÀÀÇÏ´Â ¹æ¹ýÀ¸·Î, ÀÌ´Â º¸¾È »ç°í¿¡ °üÇÑ Á¤º¸¸¦ ±³È¯ÇÒ ¼ö ÀÖÀ¸¸ç, ħÀÔ È°µ¿À» ´õ Àß ÀÌÇØÇÏ°í, ÀáÀçÀûÀÎ Ãë¾à¼ºÀ» ¾Ë¾Æ³¾ ¼ö ÀÖÀ¸¸ç, ±Ã±ØÀûÀ¸·Î °ø°Ý »çÀÌÆ® ¹× ÇÇÇØ »çÀÌÆ® ¸ðµÎÀÇ º¸¾ÈÀ» Çâ»ó½Ãų ¼ö ÀÖ´Â °è±â¸¦ Á¦°øÇÑ´Ù. ¶ÇÇÑ ¹Ì¸® ¾Ë·ÁÁöÁö ¾ÊÀº º¸¾È »ç°í¸¦ ¿¹ÃøÇÏ°í, ÀûÀýÇÏ°Ô ´ëÀÀÇÒ ¼ö ÀÖµµ·Ï ÇØÁØ´Ù. ±×¸®°í ±Ã±ØÀûÀ¸·Î´Â Àüü ÀÎÅÍ³Ý »çȸÀÇ ÄÄÇ»ÅÍ º¸¾ÈÀ» Çâ»ó½ÃÄÑ ÁÙ ¼ö ÀÖ´Ù.

ÇöÀç ÀÌ·¯ÇÑ ¹æ¹ýÀº ¿©·¯ ±¹°¡ÀÇ Ä§ÇØ»ç°í´ëÀÀÁö¿øÆÀ(CERT, Computer Emergency Response Team)°£¿¡ »ç¿ëµÇ´Â ¹æ¹ýÀÌ¸ç »óÈ£°£ÀÇ º¸¾ÈÁõÁøÀ» µµ¸ðÇÒ ¼ö ÀÖ´Â ÃÖ»óÀÇ ¹æ¹ýÀ¸·Î Àνĵǰí ÀÖ´Ù. ÀÌ ¹®¼­´Â °ø°Ý±â°üÀÇ ¿¬¶ôó Á¤º¸¸¦ ã´Â ¹æ¹ý°ú, E-mailÀ» ÅëÇÏ¿© ¾î¶»°Ô º¸¾È»ç°í Á¤º¸¸¦ ±³È¯ÇÏ°í ´ëÀÀÇÏ´ÂÁö¿¡ ´ëÇÏ¿© ´Ù·é´Ù.

¡Ø ħÇØ»ç°í´ëÀÀÀÇ Á߿伺
ÇØÅ·»ç°í ¶Ç´Â ÇØÅ·½Ãµµ¿¡ ´ëÇÏ¿© Àû±ØÀûÀ¸·Î ´ëÀÀÀ» ÇÏÁö ¾ÊÀ¸¸é, °ø°ÝÀÚ´Â Áö¼ÓÀûÀ¸·Î ´Ù¾çÇÑ ¹æ¹ýÀ» µ¿¿øÇÏ¿© °ø°ÝÀ» ÇϰԵǸç, °á±¹ ÇØÅ·À» ´çÇÏ°Ô µÈ´Ù. ±¹¿Ü¿¡¼­ ½ÃµµµÇ´Â °ø°Ý¿¡µµ Àû±Ø ´ëÀÀÇϵµ·Ï ÇÏ¿©¾ß ÇÑ´Ù.

[ 2 ] °ø°Ý »çÀÌÆ® ¿¬¶ôó ã±â

ħÀԽõµ ¶Ç´Â ÇØÅ·»ç°í¸¦ ŽÁöÇÏ´Â °æ¿ì, °ü·Ã °ø°Ý »çÀÌÆ®ÀÇ Á¤º¸´Â µµ¸ÞÀÎ ÁÖ¼Ò(www.kisa.or.kr ÇüÅÂ)³ª IP ÁÖ¼Ò(203.233.150.1 ÇüÅÂ)·Î ³ªÅ¸³­´Ù. µû¶ó¼­ ÀÌ·¯ÇÑ µµ¸ÞÀÎÁÖ¼Ò ¶Ç´Â IPÁÖ¼Ò Á¤º¸¸¸À» °¡Áö°í °ü·Ã »çÀÌÆ®ÀÇ ¿¬¶ôó¸¦ ã¾Æ¾ß ÇÑ´Ù. µµ¸ÞÀÎ ÁÖ¼Ò¸¦ ¾Ë°æ¿ì¿¡´Â ÀϹÝÀûÀ¸·Î Á÷Á¢ °ü·Ã µµ¸ÞÀÎÀÇ ¸ÞÀΠȨÆäÀÌÁö¸¦ ¹æ¹®ÇÏ¿© ¸ÞÀÏ ÁÖ¼Ò¸¦ ¾òÀ» ¼öµµ ÀÖ´Ù. ±×¸®°í IP ÁÖ¼Ò¸¸À» ¾Ë °æ¿ì¿¡´Â nslookup ¸í·ÉÀ̳ª ÅøÀ» ÀÌ¿ëÇÏ¿© IP ÁÖ¼Ò¿¡ ´ëÇÑ µµ¸ÞÀÎ ÁÖ¼Ò¸¦ ¾Ë¾Æ³¾ ¼ö ÀÖ´Ù. ÇÏÁö¸¸ ¸¹Àº °æ¿ì(1/2 Á¤µµ)¿¡ ÀÖ¾î °ø°Ý È£½ºÆ®ÀÇ µµ¸ÞÀÎÀº ³ªÅ¸³ªÁö ¾Ê´Â °æ¿ì°¡ ¸¹´Ù. ÀÌ·± °æ¿ì´Â º¸Åë whois ¸í·ÉÀ» ÀÌ¿ëÇÏ¿© ÀÎÅÍ³Ý µî·Ï±â°ü(Çѱ¹ÀÇ °æ¿ì, Çѱ¹ÀÎÅͳÝÁ¤º¸¼¾ÅÍ(krnic))¿¡ ÀÇÇØ À¯ÁöµÇ´Â °ø°³ µ¥ÀÌÅͺ£À̽º¸¦ Á¶È¸ÇÔÀ¸·Î¼­ ¾Ë¾Æ³¾ ¼ö ÀÖ´Ù.

¡Ø DNS nslookup, traceroute, whois ±â´ÉÀ» Á¦°øÇØÁÖ´Â ¸¹Àº À©µµ¿ì¿ë °ø°³ µµ±¸µéÀÌ Á¸ÀçÇÑ´Ù.
NetLab : http://www.listsoft.com/eng/programs/pr134.htm
toucow »çÀÌÆ® : http://tucows.mirror.ac.uk/dns95.html

°¡. µµ¸ÞÀÎ ÁÖ¼Ò/IP ÁÖ¼Ò º¯È¯

µµ¸ÞÀÎ ÁÖ¼Ò³ª È£½ºÆ® À̸§ÀÌ ÀÖÀ¸¸é UNIX³ª Windows NTÀÇ 'nslookup'°ú °°Àº ¸í·ÉÀ» ÀÌ¿ëÇÏ¿© IP ÁÖ¼Ò¸¦ ¾Ë¾Æ³¾ ¼ö ÀÖ´Ù. ¶Ç´Â °ø°³¿ë µµ±¸¸¦ ÀÌ¿ëÇÏ¿© ÀÌ·¯ÇÑ º¯È¯ÀÛ¾÷À» ÇÒ ¼ö ÀÖ´Ù. º¸Åë ÀÌ·¯ÇÑ µµ±¸¿¡¼­´Â DNS ¶ó´Â Ç׸ñÀ» ÀÌ¿ëÇÑ´Ù.

´ÙÀ½Àº µµ¸ÞÀÎÁÖ¼Ò¸¦ IP ÁÖ¼Ò·Î º¯È¯ÇÏ´Â ¿¹ÀÌ´Ù. ÀÌ ¿¹´Â UNIX ȯ°æ¿¡¼­ 'nslookup'À» »ç¿ëÇÑ °ÍÀÌ´Ù.

Example 1 : 'www.certcc.or.kr'À̶ó´Â µµ¸ÞÀÎÁÖ¼Ò¸¦ IPÁÖ¼Ò·Î º¯È¯
---------cert% nslookup www.certcc.or.kr
---------Server: www.certcc.or.kr
---------Address: 203.233.150.1
---------Name: cert.certcc.or.kr
---------Address: 203.233.150.1
---------Aliases: www.certcc.or.kr

Example 2 : "203.233.150.1"À̶ó´Â IP ÁÖ¼Ò¸¦ µµ¸ÞÀÎ ÁÖ¼Ò·Î º¯È¯
---------cert% nslookup 203.233.150.1
---------Server: www.certcc.or.kr
---------Address: 203.233.150.1
---------Name: www.certcc.or.kr
---------Address: 203.233.150.1

³ª. ¿¬¶ôó Á¶È¸ ¹× ´ëÀÀ

°ø°Ý »çÀÌÆ®ÀÇ µµ¸ÞÀÎ ÁÖ¼Ò³ª IP ÁÖ¼Ò¸¦ ¾Ë °æ¿ì ´ÙÀ½°ú °°Àº ¹æ¹ýÀ¸·Î °ü·Ã »çÀÌÆ® ¿¬¶ôó Á¤º¸¸¦ ¾Ë¾Æ³»¾î ´ëÀÀÇÒ ¼ö ÀÖ´Ù.

1) ħÇØ»ç°í´ëÀÀÆÀ(CERT)¿¡ ¿¬¶ôÇϱâ

°¢ Áö¿ªÀ̳ª ±¹°¡¸¶´Ù ħÇØ»ç°í´ëÀÀÆÀ(CERT, Computer Emergency Response Team)ÀÌ ÀÖ´Ù. ¹®Á¦°¡ »ý±ä »çÀÌÆ®¿¡ Á÷Á¢ ¿¬¶ôÇÏ´Â ¹æ¹ý´ë½Å¿¡ ÇØ´ç Áö¿ª°ú °ü·ÃµÈ ħÇØ»ç°í´ëÀÀÆÀ¿¡ ¿¬¶ôÇÏ´Â ¹æ¹ýÀ» »ç¿ëÇÑ´Ù.

FIRST(The Forum of Incident Response and Security Team)´Â Àü¼¼°è ħÇØ»ç°í´ëÀÀÆÀÀÇ ¿¬ÇÕü·Î, FIRSTÀÇ À¥»çÀÌÆ®¿¡ Àִ ħÇØ»ç°í´ëÀÀÆÀÀÇ ¸í´ÜÀ» Âü°íÇؼ­ ÇØ´ç Áö¿ªÀÇ Ä§ÇØ»ç°í´ëÀÀ ÆÀ¿¡ ¿¬¶ôÇÑ´Ù. ÀÌ ¹æ¹ýÀº °ø°Ý »çÀÌÆ®¿¡ Á÷Á¢ ¿¬¶ôÀ» ÃëÇÏ´Â ¹æ¹ý°ú ÇÔ²² º´Çà»ç¿ëÇÔÀ¸·Î¼­ ´õ¿í È¿°úÀûÀÌ´Ù.

¡Ø ÷ºÎ °¢±¹ÀÇ CERT ¿¬¶ôó ÂüÁ¶ : http://www.first.org/team-info/

¡Ø Âü°í : Çѱ¹ ħÇØ»ç°í´ëÀÀÆÀ ¿¬¶ôó
---ÀüÈ­ : 118 (Áö¹æÀº 02-118)
---Æѽº : (02) 4055-519
---E-mail : cert@certcc.or.kr
---ÇÖ¶óÀÎ : 018-312-4119

2) Whois ÀÌ¿ëÇϱâ

Whois´Â µµ¸ÞÀÎ À̸§°ú IP ÁÖ¼ÒÀÇ ÇÒ´çÀ» Ã¥ÀÓÁö´Â ÀÎÅÍ³Ý µî·Ï±â°üÀÇ µ¥ÀÌÅͺ£À̽ºÀÌ´Ù. µ¥ÀÌÅͺ£À̽º¿¡´Â µµ¸ÞÀÎ À̸§°ú °ü·ÃµÈ µî·ÏÀÚÀÇ ¿¬¶ôó, IP µî°ú °°Àº Á¤º¸¸¦ °¡Áö°í ÀÖÀ¸¸ç whois ¸í·ÉÀ» ÀÌ¿ëÇÏ¿© Á¶È¸ÇÒ ¼ö ÀÖ´Ù. ±×¸®°í ÀÌ·¯ÇÑ Á¤º¸¸¦ ÀÌ¿ëÇÏ¿© ÀüÈ­¸¦ Çϰųª E-mailÀ» º¸³» »ç°í´ëÀÀÀ» ÇÒ ¼ö ÀÖ´Ù.

whois ¸í·ÉÀº ´ÙÀ½°ú °°Àº Çü½ÄÀ¸·Î »ç¿ëÇÑ´Ù.

-----$ whois -h whois.server.name domain.name
¶Ç´Â, $ whois -h whois.server.name ip.address

Example 1 : Çѱ¹ Whois database¿¡ "kisa.or.kr"À̶ó´Â µµ¸ÞÀÎÀ̸§¿¡ ´ëÇÑ Á¤º¸ Á¶È¸
-----cert% whois -h whois.krnic.net kisa.or.kr
-----Korea Internet Information Service V1.0 ( created by KRNIC, 1999.6 )
-----query: kisa.or.kr

-----# KOREAN
-----µµ¸ÞÀÎ À̸§ : KISA.OR.KR
-----±â°ü/Àι°¸í : Çѱ¹Á¤º¸º¸È£ÁøÈï¿ø
-----ÁÖ¼Ò : ¼­¿ï½Ã ¼­Ãʱ¸ ¼­Ãʵ¿ 1321-6ÀÇ 10¹øÁö ¼­Ãʵ¿¾ÆŸ¿öºôµù 5Ãþ
-----...
-----ÀüÈ­¹øÈ£ : 02-3474-5121
-----ÀüÀÚ¿ìÆíÁÖ¼Ò : cert@certcc.or.kr
-----...
-----1Â÷ ³×ÀÓ¼­¹ö Á¤º¸
-----È£½ºÆ® À̸§ : ns.kisa.or.kr
-----IP ÁÖ¼Ò : 203.233.150.11
-----...
-----# ENGLISH
-----...

Example 2: Çѱ¹ Whois database¿¡ "203.233.150.1"À̶ó´Â IP ÁÖ¼Ò¿¡ ´ëÇÑ Á¤º¸ Á¶È¸
-----cert% whois -h whois.krnic.net 203.233.150.1
-----Korea Internet Information Service V1.0 ( created by KRNIC, 1999.6 )
-----query: 203.233.150.1 Á¶È¸ÇϽŠÇØ´ç IPÁÖ¼Ò´Â ¾Æ·¡ÀÇ °¡ÀÔ±â°ü¿¡ ÇÒ´çµÈ ºí·°ÀÔ´Ï´Ù.
-----# ENGLISH
-----IP Address : 203.233.150.0-203.233.151.255
-----Connect ISP Name : KOSINet
-----Registration Date: 19960716
-----Network Name : KISANET
-----[ Organization Information ]
-----...
-----[ Admin Contact Information]
-----Name : Chaeho Lim
-----Org Name : Korea Information Security Agency
-----State : Seoul
-----Address : 5th Fl., Dong-A Tower, 1321-6, Seocho-Dong, Seocho-Gu
-----Zip Code : 137-070
-----Phone : 02-3488-4120
-----Fax : 02-3488-4129
-----E-Mail : chlim@certcc.or.kr
-----...

---whois µ¥ÀÌÅͺ£À̽º´Â °¢ ±¹°¡ ±×¸®°í Áö¿ª¿¡ µû¶ó¼­ ¿©·¯ »çÀÌÆ®¿¡ Á¸ÀçÇÑ´Ù.
À§ÀÇ ¿¹¿¡¼­´Â whois.krnic.netÀº kr·Î ³¡³ª´Â µµ¸ÞÀο¡ ´ëÇÑ Á¤º¸¸¸À» Á¦°øÇÑ´Ù.
µû¶ó¼­ µµ¸ÞÀο¡ µû¶ó ´Ù¸¥ whois ¼­¹ö¸¦ ÀÌ¿ëÇÏ¿©¾ß Çϴµ¥ ´ëÇ¥ÀûÀÎ whois ¼­¹ö´Â ´ÙÀ½°ú °°´Ù.

------whois.arin.net : ÃÖ»óÀ§ µµ¸ÞÀÎ Á¤º¸Á¦°ø (À¥±â¹ÝÀÇ Á¶È¸ »çÀÌÆ® : http://www.arin.net/whois/arinwhois.html)

------whois.apnic.net : ASIA-PACIFIC Áö¿ª µµ¸ÞÀÎÁ¤º¸ Á¦°ø (À¥±â¹ÝÀÇ Á¶È¸ »çÀÌÆ® : http://www.apnic.net/apnic-bin/whois.pl)

------whois.ripe.net : À¯·´ Áö¿ªÀÇ µµ¸ÞÀÎ Á¤º¸ Á¦°ø (À¥±â¹ÝÀÇ Á¶È¸ »çÀÌÆ® : http://www.ripe.net/db/whois.html)

------whois..krnic.net : ±¹³» µµ¸ÞÀÎ(kr) Á¤º¸Á¦°ø (À¥±â¹ÝÀÇ Á¶È¸ »çÀÌÆ® : http://whois.nic.or.kr/)

µû¶ó¼­ Àß ¸ð¸£´Â Áö¿ªÀÇ IPÁÖ¼ÒÀÇ °æ¿ì arin.net µ¥ÀÌÅͺ£À̽º¿¡¼­ºÎÅÍ Á¶È¸¸¦ ½ÃÀÛÇÏ¿© °ü·Ã Áö¿ªÀÇ whois ¼­¹ö¿¡ Á¶È¸¸¦ ÇÏ¸é µÈ´Ù.

¡Ø ÷ºÎ "IP ÁÖ¼Òº° °ü·Ã whois ¼­¹ö Á¤º¸" ÂüÁ¶

3) traceroute : »óÀ§ ISP(Internet Service Provider) ã±â
---°ø°Ý »çÀÌÆ®¿¡ ´ëÇÑ ¿¬¶ô Á¤º¸¸¦ ã±â°¡ Èûµç °æ¿ì, ±×¸®°í °ø°Ý »çÀÌÆ®¿¡¼­ ¸ÞÀÏ¿¡ ´äÀåÀ» ÇÏÁö ¾Ê´Â°æ¿ì¿¡´Â ÇØ´ç »çÀÌÆ®ÀÇ »óÀ§ ISP¿¡ ¿¬¶ôÇÏ¿© ÇØ´ç »çÀÌÆ®¿¡°Ô º¸¾È»ç°í °ü·Ã Á¤º¸ Æ÷¿öµùÇØ´Þ¶ó°í ºÎŹÇϰųª, ¶Ç´Â Á÷Á¢ »ç°í󸮸¦ ¿äûÇÒ ¼ö°¡ ÀÖ´Ù. ÀÌ ¹æ¹ýÀº »óÀ§ ISP°¡ º¸¾È »ç°í¿Í °ü·ÃµÈ ÀÚ½ÅÀÇ °¡ÀÔÀÚ »çÀÌÆ®¸¦ µµ¿Í ÁÙ ¶§¸¸ °¡´ÉÇÏ´Ù.

---'traceroute' ¸í·ÉÀº »óÀ§ ISP¸¦ È®ÀÎÇϴµ¥ »ç¿ëÇÒ ¼ö ÀÖ´Ù. À¯´Ð½ºÀÇ °æ¿ì 'traceroute' À̶ó´Â µµ±¸¸¦ ¼³Ä¡ÇÏ¿© »ç¿ëÇϸç Windows 95/98/NT ½Ã½ºÅÛ¿¡¼­´Â 'traceroute'¿Í À¯»çÇÑ 'tracert'¶ó´Â ¸í·É¾î¸¦ »ç¿ëÇÑ´Ù.

Example : host3.example-site.eduÀÇ »óÀ§ ISP¸¦ ã´Â °æ¿ì

-------$ traceroute host3.example-site.edu traceroute to host3.example-site.edu (10.72.0.176), 30 hops max
-------1 hop1.reporting-site.com (10.112.1.2) 2 ms 2 ms 1 ms
-------2 hop2.transit-network.net (10.288.114.254) 2 ms 2 ms 2 ms
-------3 hop3.transit-network.net (10.224.137.21) 3 ms 3 ms 5 ms
-------4 hop4.transit-network.net (10.224.46.74) 4 ms 2 ms 3 ms
-------5 hop5.transit-network.net (10.224.46.93) 18 ms 20 ms 21 ms
-------6 hop6.transit-network.net (10.224.46.5) 26 ms 21 ms 27 ms
-------7 hop7.example-upstream.net (10.224.32.30) 19 ms 16 ms 16 ms
-------8 hop8.example-upstream.net (10.4.1.122) 25 ms 24 ms 24 ms
-------9 hop9. example-upstream.net (10.4.1.202) 24 ms 25 ms 26 ms
-------10 hop10.example-site.edu (10.192.33.3) 24 ms 26 ms 26 ms
-------11 hop11.example-site.edu (10.72.0.11) 27 ms 25 ms 27 ms
-------12 host3.example-site.edu (10.72.0.176) 26 ms 27 ms 26 ms

---À§ °á°ú¿¡¼­ º¸´Â ¹Ù¿Í °°ÀÌ EXAMPLE-SITE.EDUÀÇ »óÀ§ È£½ºÆ®´Â EXAMPLE-UPSTREAM.NETÀ̶ó´Â µµ¸ÞÀο¡ ÀÖÀ¸¸ç, EXAMPLE-UPSTREAM.NET°ú °ü·ÃµÈ »çÀÌÆ® Á¤º¸´Â Whois µ¥ÀÌÅͺ£À̽º¸¦ ÀÌ¿ëÇؼ­ ãÀ» ¼ö ÀÖ´Ù.

¡Ø ÁÖÀÇ : °ø°Ý±â°üÀÇ »óÀ§ ISP¿¡°Ô »ç°í¿Í °ü·ÃµÈ ¸ÞÀÏÀ» º¸³¾ °æ¿ì¿¡´Â ´ÙÀ½»çÇ×À» °í·ÁÇÑ´Ù.
---- ISP°¡ °ø°Ý°ú °ü·ÃµÈ ±â°üÀÌ ¾Æ´Ï¹Ç·Î Á÷Á¢ÀûÀÎ Ç×ÀÇ´Â ÇÇÇÑ´Ù.
---- °ø°Ý±â°ü¿¡°Ô ¸ÞÀÏÀ» Æ÷¿öµùÇØ ´Þ¶ó°í ¿äûÇÑ´Ù.

[ 3 ] ´ëÀÀ¹æ¹ý

---°ø°Ý »çÀÌÆ®¿ÍÀÇ ¿¬¶ôÀº º¸Åë E-mail, ÀüÈ­, FAX µîÀ» ÀÌ¿ëÇÒ ¼ö ÀÖ´Ù. º¸¾È »ç°íÀÇ ¼º°Ý¿¡ µû¶ó °¢°¢ÀÇ ¹æ¹ýÀ» ÀÌ¿ëÇÏ´Â µ¥´Â Àå´ÜÁ¡ÀÌ ÀÖ´Ù.

°¡. E-mailÀ» ÀÌ¿ëÇÑ ´ëÀÀ¹æ¹ý

---E-mailÀº °¡Àå ´ëÇ¥ÀûÀ¸·Î »ç¿ëµÇ´Â ¼ö´ÜÀ¸·Î, ´ÙÀ½°ú °°Àº ÀåÁ¡À» °¡Áö°í ÀÖ´Ù.

--- ---- ¸ÞÀÏÀ» ÅëÇÏ¿© log file°ú °°Àº ÀúÀåµÈ Á¤º¸¸¦ Á¦°øÇÑ´Ù.
--- ---- ´Ù¼öÀÇ °ü·Ã ±â°üµé°ú Á¤º¸¸¦ °øÀ¯ÇÒ ¼ö ÀÖ°Ô ÇØÁØ´Ù.
--- ---- ´Ù¸¥ Åë½Å ¹æ¹ý¿¡ ºñÇØ Á»´õ ¸íÈ®ÇÑ ¸Þ½ÃÁö¸¦ Á¦°øÇÑ´Ù.

---À§ÀÇ [ 2 ]¿¡¼­ ±â¼úÇÑ ¹æ¹ýÀ¸·Î °ø°Ý±â°üÀÇ Á¤º¸¸¦ ã¾Æ³»¾î ¸ÞÀÏ ÁÖ¼Ò¸¦ ãÀ» ¼ö Àִµ¥ ÀÌ·¯ÇÑ Á¤º¸´Â Ʋ¸° °æ¿ì°¡ °¡²û ÀÖÀ¸¹Ç·Î ÀϹÝÀûÀ¸·Î Ç¥ÁØÀ¸·Î »ç¿ëµÇ´Â ¸ÞÀÏ ÁÖ¼Ò¸¦ º´ÇàÀ¸·Î »ç¿ëÇÏ¿© ¸ÞÀÏÀ» º¸³»µµ·Ï ÇÑ´Ù.

ÀϹÝÀûÀ¸·Î ´ëºÎºÐÀÇ »çÀÌÆ®¿¡¼­ »ç¿ëÇÏ´Â ¸ÞÀÏ ÁÖ¼Ò´Â ´ÙÀ½°ú °°´Ù.
security@domain.name - º¸¾È°ü·Ã »ç°í ´ã´çÀÚ ¸ÞÀÏ ÁÖ¼Ò
cert@domain.name - º¸¾È°ü·Ã »ç°í ´ã´çÀÚ ¸ÞÀÏ ÁÖ¼Ò
abuse@domain.name - ³×Æ®¿öÅ© ¿À¿ë ´ã´çÀÚ ¸ÞÀÏ ÁÖ¼Ò
root@domain.name - À¯´Ð½º ½Ã½ºÅÛ °ü¸®ÀÚ ÁÖ¼Ò
postmaster@domain.name - E-mail °ü¸®ÀÚ ÁÖ¼Ò
webmaster@domain.name - À¥¼­¹ö °ü¸®ÀÚ ÁÖ¼Ò

¡Ø ¸ÞÀÏ ÁÖ¼Ò¿¡ ´ëÇÑ ±Ç°í »çÇ×
- http://info.internet.isi.edu/in-notes/rfc/files/rfc2142.txt

---°ø°Ý »çÀÌÆ® ¹× °ü·Ã CERT¿¡ ¸ÞÀÏÀ» º¸³¾ ¶§´Â °ø°Ý¿¡ ´ëÇÑ Á¤º¸(·Î±× ÆÄÀÏ µî)¸¦ ÷ºÎÇÏ¿©¾ß¸¸ ÇØ´ç ±â°ü¿¡¼­ »ç°íÁ¶»ç¸¦ ÇÒ ¼ö ÀÖ´Ù. ·Î±×¸¦ ÷ºÎÇÏ°Ô µÇ¸é ÀÚ½ÅÀÇ »çÀÌÆ®°¡ ¹àÇôÁö°Ô µÇ¹Ç·Î À̸¦ ¿øÇÏÁö ¾ÊÀ» °æ¿ì ÇÇÇرâ°ü¿¡¼­´Â ÀÚ½ÅÀÇ µµ¸ÞÀÎ ÁÖ¼Ò³ª IP ÁÖ¼Ò¸¦ "xxx" µîÀ¸·Î ó¸®ÇÏ¿© º¸³»´Â ¹æ¹ýÀ» »ç¿ëÇÒ ¼öµµ ÀÖ´Ù.

´ÙÀ½Àº CERTCC-KR¿¡¼­ ÀϹÝÀûÀ¸·Î »ç¿ëµÇ´Â ħÇØ»ç°í ´ëÀÀ ¸ÞÀÏ »ùÇÃÀÌ´Ù(°ø°Ý±â°üÀÌ ±¹¿ÜÀÏ °æ¿ì)

CERTCC-KR(Korean Computer Emergency Response Team Coordination Center) is acting as incident response coordination center for the Korean IRT community. We are contacting you on behalf of one of our customer in Korea

We have received a report of unauthorised access originating from your site as shown below.

--(GMT+9)------------------
Scan Detected
[03/24/2000 17:24:58] From 202.68.22.253:3870 To xxx.xxx.xxx.149:110
[03/24/2000 17:24:58] From 202.68.22.253:3872 To xxx.xxx.xxx.151:110
[03/24/2000 17:24:58] From 202.68.22.253:3873 To xxx.xxx.xxx.152:110
[03/24/2000 17:24:58] From 202.68.22.253:3875 To xxx.xxx.xxx.154:110
[03/24/2000 17:24:58] From 202.68.22.253:3876 To xxx.xxx.xxx.155:110
--------------------------

This unauthorised access logged indicate that you may have a security problem or that some of your users may be delving into activities that may go against your acceptable use policy.

Please take the appropriate steps that the attacker could be identified and that these attacks can be stopped.

And give us feedback about the results of the investigation.

If you are not the correct person to be dealing with this incident, could you please contact the appropriate person with the details and inform us.

Best regards!
HyunWoo, Lee
CERTCC-KR

¸¹Àº °æ¿ì¿¡ ÀÖ¾î ¿¬¶ôó Á¤º¸°¡ Ʋ¸®°Å³ª ¿Ã¹Ù¸¥ ´ã´çÀÚ°¡ ¾Æ´Ò ¼ö ÀÖÀ¸¹Ç·Î, ÀÌ·¯ÇÑ ¸ÞÀÏÀ» º¸³¾ °æ¿ì µÇµµ·Ï ÀÌ¸é ´ÙÀ½°ú °°Àº ¹®±¸¸¦ ³Öµµ·Ï ÇÑ´Ù.

--- --- --- ---"¸¸¾à °ø°Ý È£½ºÆ®[ÇØ´ç IP]°¡ ´Ù¸¥ ±â°üÀÇ È£½ºÆ®ÀÎ °æ¿ì¿¡´Â ¾Æ½Ã´Â ¹üÀ§¿¡¼­ °ü·Ã »ç¿ëÀÚ ¶Ç´Â ±â°ü¿¡
---
--- --- --- º»¸ÞÀÏÀ» Æ÷¿öµù ÇØÁÖ½Ã¸é °í¸¿°Ú½À´Ï´Ù."

---¶ÇÇÑ ¸ÞÀÏÀ» º¸³¾¶§´Â ¹ÝµíÀÌ Çѱ¹Ä§ÇØ»ç°í´ëÀÀÆÀ(CERTCC-KR)ÀÇ cert@certcc.or.kr"À¸·Î "cc"Çϵµ·Ï ÇÏ¿© ±¹³» ħÇØ»ç°í ´ëÀÀ¿¡ µµ¿òÀÌ µÇµµ·Ï ÇÏ¿©¾ß ÇÑ´Ù. CERTCC-KR¿¡¼­´Â ÀÌ·¯ÇÑ Á¤º¸¸¦ ÅëÇÏ¿© »õ·Î¿î °ø°Ý¹æ¹ýÀ» ÆľÇÇÏ°í ±¹³» Á¤º¸Åë½Å¸Á ¿î¿µ±â°ü¿¡ ¾Ë¸²À¸·Î¼­ ºñ½ÁÇÑ Á¾·ùÀÇ °ø°ÝÀÌ È®»êµÇÁö ¾Êµµ·Ï ¹æÁöÇÒ ¼ö ÀÖ´Â °ÍÀÌ´Ù.

¡Ø ¿Ü±¹¿¡ ¸ÞÀÏÀ» º¸³»´Â °æ¿ì, ·Î±×¸¦ ÷ºÎÇÒ¶§ Ç¥ÁØ ½Ã°£´ë "GMT+9"À» Ç¥½ÃÇØ¾ß ÇÑ´Ù.

³ª. ÀüÈ­¸¦ ÀÌ¿ëÇÑ ´ëÀÀ¹æ¹ý

---ÀüÈ­ ¿¬¶ôÀº E-mail¿¡ ºñÇؼ­ º¸´Ù Á÷Á¢ÀûÀÌ°í ½Å¼ÓÇÑ ¹æ¹ýÀ¸·Î ´Ù¸¥ »çÀÌÆ®ÀÇ °ü¸®ÀÚ¿Í À̾߱âÇؾßÇÒ ÇÊ¿ä°¡ ÀÖÀ» °æ¿ì¿¡ »ç¿ëÇÏ´Â ¹æ¹ýÀ¸·Î, ÁÖ·Î ½Å¼ÓÇÑ ´ëÀÀÀÌ ÇÊ¿äÇÑ °æ¿ì, ¸Å¿ì ¹Î°¨Çϰųª Áß¿äÇÑ »ç°í¿¡ ´ëÇÏ¿© È¿°úÀûÀÌ´Ù.

---whois µ¥ÀÌÅͺ£À̽ºÀÇ ÀüÈ­ ¿¬¶ôó Á¤º¸ ¿ª½Ã Ʋ¸° °æ¿ì°¡ ÀÖ´Ù. ÀÌ·¯ÇÑ °æ¿ì Á÷Á¢ °ø°Ý ±â°üÀÇ È¨ÆäÀÌÁö¿¡ Á¢¼ÓÇÏ¿© ¿¬¶ôó¸¦ ¾Ë¾Æ³¾ ¼öµµ ÀÖÀ¸¸ç, ¶Ç´Â "114"¸¦ ÀÌ¿ëÇϱ⵵ ÇÑ´Ù.

[ ÷ ºÎ 1] IP ÁÖ¼Òº° °ü·Ã whois ¼­¹ö Á¤º¸

¡Ø "ANA-reserved"´Â Ư¼ö¸ñÀûÀ¸·Î ¿¹¾àµÈ ¹øÈ£·Î ÀÎÅͳݿ¡¼­ »ç¿ëµÇÁö ¾Ê´Â IP ÀÌ´Ù.
IP Number Start
IP Number End
WHOIS server
0.0.0.0
2.255.255.255
IANA-reserved
3.0.0.0
4.255.255.255
whois.arin.net
5.0.0.0
5.255.255.255
IANA-reserved
6.0.0.0
6.255.255.255
whois.arin.net
7.0.0.0
7.255.255.255
IANA-reserved
8.0.0.0
9.255.255.255
whois.arin.net
10.0.0.0
10.255.255.255
IANA-reserved
11.0.0.0
13.255.255.255
whois.arin.net
14.0.0.0
14.255.255.255
IANA-reserved
15.0.0.0
22.255.255.255
whois.arin.net
23.0.0.0
23.255.255.255
IANA-reserved
24.0.0.0
24.131.255.255
whois.arin.net
24.132.0.0
24.135.255.255
whois.ripe.net
24.136.0.0
26.255.255.255
whois.arin.net
27.0.0.0
27.255.255.255
IANA-reserved
28.0.0.0
30.255.255.255
whois.arin.net
31.0.0.0
31.255.255.255
IANA-reserved
32.0.0.0
36.255.255.255
whois.arin.net
37.0.0.0
37.255.255.255
IANA-reserved
38.0.0.0
38.255.255.255
whois.arin.net
39.0.0.0
39.255.255.255
IANA-reserved
40.0.0.0
40.255.255.255
whois.arin.net
41.0.0.0
42.255.255.255
IANA-reserved
43.0.0.0
57.255.255.255
whois.arin.net
58.0.0.0
60.255.255.255
IANA-reserved
61.0.0.0
61.255.255.255
whois.apnic.net
62.0.0.0
62.255.255.255
whois.ripe.net
63.0.0.0
63.255.255.255
whois.arin.net
64.0.0.0
64.255.255.255
whois.arin.net
65.0.0.0
127.255.255.255
IANA-reserved
128.0.0.0
139.19.255.255
whois.arin.net
139.20.0.0
139.29.255.255
whois.ripe.net
139.30.0.0
140.255.255.255
whois.arin.net
141.0.0.0
141.85.255.255
whois.ripe.net
141.86.0.0
145.223.255.255
whois.arin.net
145.224.0.0
145.254.255.255
whois.ripe.net
145.255.0.0
149.131.255.255
whois.arin.net
149.132.0.0
149.134.255.255
whois.ripe.net
149.135.0.0
149.201.255.255
whois.arin.net
149.202.0.0
149.204.255.255
whois.ripe.net
149.205.0.0
149.205.255.255
whois.arin.net
149.206.0.0
149.251.255.255
whois.ripe.net
149.252.0.0
150.253.255.255
whois.arin.net
150.254.0.0
150.254.255.255
whois.ripe.net
151.0.0.0
151.2.255.255
whois.arin.net
151.3.0.0
151.5.255.255
whois.ripe.net
151.6.0.0
151.12.255.255
whois.arin.net
151.13.0.0
151.82.255.255
whois.ripe.net
151.83.0.0
151.90.255.255
whois.arin.net
151.91.0.0
151.93.255.255
whois.ripe.net
151.94.0.0
151.94.255.255
whois.arin.net
151.95.0.0
151.95.255.255
whois.ripe.net
151.96.0.0
160.43.255.255
whois.arin.net
160.44.0.0
160.63.255.255
whois.ripe.net
160.64.0.0
160.215.255.255
whois.arin.net
160.216.0.0
160.220.255.255
whois.ripe.net
160.221.0.0
163.155.255.255
whois.arin.net
163.156.0.0
163.175.255.255
whois.ripe.net
163.176.0.0
163.255.255.255
whois.arin.net
164.0.0.0
164.40.255.255
whois.ripe.net
164.41.0.0
164.127.255.255
whois.arin.net
164.128.0.0
164.143.255.255
whois.ripe.net
164.144.0.0
169.207.255.255
whois.arin.net
169.208.0.0
169.223.255.255
whois.apnic.net
169.224.0.0
171.15.255.255
whois.arin.net
171.16.0.0
171.33.255.255
whois.ripe.net
171.34.0.0
192.70.255.255
whois.arin.net
192.71.0.0
192.71.255.255
whois.ripe.net
192.72.0.0
192.106.143.255
whois.arin.net
192.106.144.0
192.106.147.255
whois.ripe.net
192.106.148.0
192.106.195.255
whois.arin.net
192.106.196.0
192.106.197.255
whois.ripe.net
192.106.198.0
192.161.255.255
whois.arin.net
192.162.0.0
192.162.255.255
whois.ripe.net
192.163.0.0
192.163.255.255
whois.arin.net
192.164.0.0
192.167.255.255
whois.ripe.net
192.168.0.0
192.255.255.255
whois.arin.net
193.0.0.0
195.255.255.255
whois.ripe.net
196.0.0.0
196.255.255.255
whois.arin.net
197.0.0.0
197.255.255.255
IANA-reserved
198.0.0.0
198.17.116.255
whois.arin.net
198.17.117.0
198.17.117.255
whois.ripe.net
198.17.118.0
200.255.255.255
whois.arin.net
201.0.0.0
201.255.255.255
IANA-reserved
202.0.0.0
203.255.255.255
whois.apnic.net
204.0.0.0
209.255.255.255
whois.arin.net
210.0.0.0
211.255.255.255
whois.apnic.net
212.0.0.0
213.255.255.255
whois.ripe.net
214.0.0.0
216.255.255.255
whois.arin.net
217.0.0.0
223.255.255.255
IANA-reserved
224.0.0.0
239.255.255.255
whois.arin.net
240.0.0.0
255.255.255.255
IANA-reserved

[ ÷ ºÎ 2] ±¹°¡º° ÁÖ¿ä CERT ¿¬¶ôó

AFCERT (U.S. Air Force CERT)
---Constituency: Air Force Users
---Email: afcert@afcert.csap.af.mil

ASSIST US. Department of Defense Security Incident Support Team
---Constituency: DOD - Interest systems
---Email: assist@assist.mil

AT&T
---Constituency: Customers of AT&T Internet services
---Email: first-team@inetmail.att.net

AUSCERT (Australian Computer Emergency Response Team)
---Constituency: Australia - Internet .au domain
---Email: auscert@auscert.org.au

BadgIRT University of Wisconsin-Madison
---Constituency: University of Wisconsin-Madison Faculty/Staff/Students
---Email: badgirt@wisc.edu

BSI/GISA
---Constituency: German Government Institutions
---Email: fwf@bsi.de

BTCERTCC - British Telecommunications Computer Emergency Response Team
---Constituency:BT's UK Services
---Email: btcertcc@boat.bt.com

CARNet CERT
---Constituency: CARNet - Croatian Academic and Research Network.
---Email: c-cert@CARNet.hr

CERT(R) Coordination Center (CERT/CC)
---Constituency: The Internet
---Email: cert@cert.org

CERT-IT Computer Emergency Response Team Italiano
---Constituency: Italian Internet Sites
---Email: cert-it@dsi.unimi.it

CERTCC-KR Computer Emergency Response Team Korea
---Constituency: Korean Internet Sites
---Email: cert@certcc.or.kr

CERT-NASK Computer Emergency Response Team - Poland
---Constituency: Networks connected to NASK in polish
---Email: cert@nask.pl

CERT-NL
---Constituency: SURFnet connected sites SURFnet is the Dutch academic, educational and research network
---Email: cert-nl@surfnet.nl

CERT-Renater
---Constituency: Minister of Research & Education France
---Email: certsvp@renater.fr

CIAC US. Department of Energy's Computer Incident Advisory Capability
---Constituency: U.S. Department of Energy (DOE) and DOE Contractor
---Email: ciac@llnl.gov

CSIRT.DK Danish Computer Security Incident Response Team
---Constituency: All customers of Tele Danmark
---Email: csirt@csirt.dk

DANTE Delivery of Advanced Network Technology to Europe Ltd.
---Constituency: European national research networks
---Email: dancert@dante.org.uk

Defence Evaluation and Research Agency, Malvern, UK.
---Constituency: DERA
---Email: first-liaison@eris.dera.gov.uk

DFN-CERT
---Constituency: Germany
---Email: dfncert@cert.dfn.de

DK-CERT Danish Computer Emergency Response Team
---Constituency: All Danish sites
---Email: cert@cert.dk

EWA-Canada
---Constituency: Canadian Federal and Provincial Government Agencies
---Email: first@ewa-canada.com

GTCERT Georgia Institute of Technology CERT
---Constituency: Georgia Tech users
---Email: cert@gatech.edu

ILAN-CERT - Israeli Academic Network CERT
---Constituency: Israeli University users
---Email: cert@cert.ac.il

IRIS-CERT
---Constituency: Spain (incident support service)
---Email: cert@rediris.es

IU-CERT - Indiana University
---Constituency: Indiana University
---Email: first-team@iu.edu

JANET-CERT
---Constituency: All UK organizations connected to JANET network
---Email: cert@cert.ja.net

JPCERT/CC Japan Computer Emergency Response Team Coordination Center
---Constituency: Internet community in Japan
---Email: info@jpcert.or.jp

MCIWorldCom Inc.
---Constituency: MCI WorldCom Employees, Contractors and Alliance Partners
---Email: Gordon.Powell@wcom.com

MxCERT (Mexican CERT)
---Constituency: Mexico (.mx domain)
---Email: mxcert@mxcert.org.mx

NASA Ames Research Center (Principle Center for Information Technology Security)
---Constituency: National Aeronautics and Space Administration
---Email: ais@ames.arc.nasa.gov

NASIRC NASA Incident Response Center
---Constituency: NASA and the International Aerospace Community
---Email: nasirc@nasirc.nasa.gov

NAVCIRT (Naval Computer Incident Response Team)
---Constituency: U. S. Department of Navy
---Email: navcirt@fiwc.navy.mil

NIST/CSRC
---Constituency: NIST and civilian U.S. agencies (guidance only)
---Email: first-team@csmes.ncsl.nist.gov

NORDUnet
---Constituency: NORDUnet
---Email: cert@nordu.net

NU-CERT Northwestern University
---Constituency: Northwestern University Faculty/Staff/Students
---Email: nu-cert@nwu.edu

OSU-IRT - The Ohio State University Incident Response Team
---Constituency: The Ohio State University
---Email: security@net.ohio-state.edu

OxCERT Oxford University IT Security Team
---Constituency: Oxford University
---Email: oxcert@ox.ac.uk

PCERT Purdue Computer Emergency Resp. Team
---Constituency: Purdue University
---Email: pcert@cs.purdue.edu

Pennsylvania State University
---Constituency: Pennsylvania State University
---Email: security@psu.edu

SingCERT (Singapore Computer Emergency Response Team)
---Constituency: Singapore - Internet .sg domain
---Email: cert@singcert.org.sg

Sprint
---Constituency: Sprint
---Email: first-team@sprint.net

SUN Microsystems, Inc.
---Constituency: Customers of Sun Microsystems
---Email: security-alert@sun.com

SUNSeT Stanford University Network Security Team
---Constituency: Stanford University Networks and Systems
---Email: security@stanford.edu

SWITCH-CERT Swiss Academic and Research Network CERT
---Constituency: SWITCH is the Swiss Academic and Research Network
---Email: cert-staff@switch.ch

UNI-CERT - KPN Telecom
---Constituency: Customers of the Internet Service KPN Telecom
---Email: cert@uni-cert.nl

UNIRAS (HM Govt CERT)
---Constituency: HM Government
---Email: uniras@gtnet.gov.uk

USWirt - US West Incident Response Team
---Constituency: Entire Corporation
---Email: wgaspar@uswest.com

[ Âü°í »çÀÌÆ® ]
---http://www.cert.org/tech_tips/finding_site_contacts.html
---http://www.first.org/ http://www.certcc.or.kr/

 

 

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