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[์„œ๋น„์Šค ์†Œ๊ฐœ] OSINT Open Source + Intelligence ๋ž€? OSINT(Open Source Intelligence)๋Š” ๊ณต๊ฐœ๋œ ์ถœ์ฒ˜๋ผ๋Š” ์˜๋ฏธ๋กœ Open Source์™€ ๊ตฐ(Military)์—์„œ ์ •๋ณด๋ฅผ ์ˆ˜์ง‘ํ•˜๋Š” ์ฒฉ๋ณดํ™œ๋™์—์„œ ์œ ๋ž˜๋œ Intelligence๊ฐ€ ํ•ฉ์ณ์ ธ ํƒ„์ƒํ•œ ์šฉ์–ด ์ถœ์ฒ˜ : https://www.kisec.com/rsrh_rpt_det.do?id=163 ๊ฐ„๋‹จํ•˜๊ฒŒ๋Š” ์˜จ๋ผ์ธ ์ƒ์— ๋„๋ฆฌ ํผ์ ธ ์žˆ๋Š” ๊ฐ์ข… ์ •๋ณด๋“ค์„ ํ•œ ๊ณณ์— ๋ชจ์•„์„œ ๋ณผ ์ˆ˜ ์žˆ๊ฒŒ ํ•ด์ฃผ๋Š” ์—ญํ• ์„ ํ•˜๋Š” ๊ฒƒ ๊ฐ™๋‹ค 1. Shodan Shodan Search engine of Internet-connected devices. Create a free account to get started. www.shodan.io 2. Criminal IP Cybersecu.. 2022. 9. 3.
Microsoft-Event Log ๋ถ„์„์— ๋„์›€์ด ๋˜๋Š” Map Github์— ์นจํ•ด ์‚ฌ๊ณ  ๋Œ€์‘ ๋ฐ ๋กœ๊ทธ ์ˆ˜์ง‘์— ๋„์›€์ด ๋  ๋‚ด์šฉ์ด ๊ธฐ๋ก๋˜์–ด ์žˆ์–ด์„œ ๊ณต์œ . GitHub - mdecrevoisier/Microsoft-eventlog-mindmap: Set of Mindmaps providing a detailed overview of the different #Microsoft aud Set of Mindmaps providing a detailed overview of the different #Microsoft auditing capacities for Windows, Exchange, Azure,... - GitHub - mdecrevoisier/Microsoft-eventlog-mindmap: Set of Mindmaps p... github.com 2022. 9. 3.
[News] '๋ ˆ๋นŒ' ์‹ฌ์ƒ์น˜ ์•Š๋‹ค…๋‹คํฌ์›น์„œ ้Ÿ“ ๊ธฐ์—…๋ฐ์ดํ„ฐ ํƒˆ์ทจ '์ฃผ์žฅ' '๋ ˆ๋นŒ' ์‹ฌ์ƒ์น˜ ์•Š๋‹ค…๋‹คํฌ์›น์„œ ้Ÿ“ ๊ธฐ์—…๋ฐ์ดํ„ฐ ํƒˆ์ทจ '์ฃผ์žฅ' [๋ฐ์ดํ„ฐ๋ง] ์ง€๋‚œํ•ด 7์›” ์นด์„ธ์•ผ(Kaseya) ๊ณต๊ธ‰๋ง ๊ณต๊ฒฉ์œผ๋กœ ์ „ ์„ธ๊ณ„๋ฅผ ๊ณตํฌ์— ๋ชฐ์•„๋„ฃ์—ˆ๋˜ '๋ ˆ๋นŒ(REvil)'์€ ๋ฏธ๊ตญ ์ •๋ถ€์˜ ์••๋ ฅ๊ณผ ๊ตญ์ œ ๊ณต์กฐ ์ˆ˜์‚ฌ๋กœ ์‚ฌ์‹ค์ƒ ํ•ด์ฒด๋œ ๊ฒƒ์œผ๋กœ ์•Œ๋ ค์กŒ๋‹ค. ๊ทธ๋Ÿฌ๋‚˜ ์˜ฌํ•ด 5์›” ๋ ˆ๋นŒ์˜ ๋‹คํฌ์›น ์‚ฌ n.news.naver.com 2022. 8. 13.
Internet Explorer TLS, ์„ค์ • ๋ฐฉ๋ฒ• TLS(Transport Layer Security) ์ธํ„ฐ๋„ท ์ƒ์˜ ์ปค๋ฎค๋‹ˆ์ผ€์ด์…˜์„ ์œ„ํ•œ ๊ฐœ์ธ ์ •๋ณด์™€ ๋ฐ์ดํ„ฐ ๋ณด์•ˆ์„ ์šฉ์ดํ•˜๊ฒŒ ํ•˜๊ธฐ ์œ„ํ•ด ์„ค๊ณ„๋˜์–ด ๋„๋ฆฌ ์ฑ„ํƒ๋œ ๋ณด์•ˆ ํ”„๋กœํ† ์ฝœ TLS์˜ ์ฃผ์š” ์‚ฌ์šฉ ์‚ฌ๋ก€๋Š” ์›น ์‚ฌ์ดํŠธ๋ฅผ ๋กœ๋“œํ•˜๋Š” ์›น ๋ธŒ๋ผ์šฐ์ €์™€ ๊ฐ™์ด ์›น ์‘์šฉ ํ”„๋กœ๊ทธ๋žจ๊ณผ ์„œ๋ฒ„ ๊ฐ„์˜ ์ปค๋ฎค๋‹ˆ์ผ€์ด์…˜์„ ์•”ํ˜ธํ™”ํ•˜๋Š” ๊ฒƒ TLS๋Š” ๋˜ํ•œ ์ด๋ฉ”์ผ, ๋ฉ”์‹œ์ง€, ๋ณด์ด์Šค์˜ค๋ฒ„ IP(VoIP)์™€ ๊ฐ™์€ ๋‹ค๋ฅธ ์ปค๋ฎค๋‹ˆ์ผ€์ด์…˜์„ ์•”ํ˜ธํ™”ํ•˜๊ธฐ ์œ„ํ•ด ์‚ฌ์šฉ๋ฉ๋‹ˆ๋‹ค. TLS ํ”„๋กœํ† ์ฝœ์˜ ์—ญํ•  ์•”ํ˜ธํ™”: ์ œ3์ž๋กœ๋ถ€ํ„ฐ ์ „์†ก๋˜๋Š” ๋ฐ์ดํ„ฐ๋ฅผ ์ˆจ๊น๋‹ˆ๋‹ค. ์ธ์ฆ: ์ •๋ณด๋ฅผ ๊ตํ™˜ํ•˜๋Š” ๋‹น์‚ฌ์ž๊ฐ€ ์š”์ฒญ๋œ ๋‹น์‚ฌ์ž์ž„์„ ๋ณด์žฅํ•ฉ๋‹ˆ๋‹ค. ๋ฌด๊ฒฐ์„ฑ: ๋ฐ์ดํ„ฐ๊ฐ€ ์œ„์กฐ๋˜๊ฑฐ๋‚˜ ๋ณ€์กฐ๋˜์ง€ ์•Š์•˜๋Š”์ง€ ํ™•์ธํ•ฉ๋‹ˆ๋‹ค. ์ถœ์ฒ˜ : https://www.cloudflare.com/ko-kr/learning/ssl/transport.. 2022. 8. 11.
[Linux CentOS 7 ] NTP ์„ค์ • ๋ฐฉ๋ฒ• NTP ์„ค์ • ๋งค๋‰ด์–ผ ( CentOS Linux release 7.9 ) NTP ์„œ๋น„์Šค ํ™œ์„ฑํ™” ์—ฌ๋ถ€ ํ™•์ธ ๋ฐฉ๋ฒ• - systemctl status ntpd.service - ํ˜„์žฌ ์„œ๋ฒ„์— NTP ์„œ๋น„์Šค๊ฐ€ ํ™œ์„ฑํ™”๋˜์–ด ์žˆ๋Š”์ง€ ํ™•์ธํ•  ์ˆ˜ ์žˆ๋‹ค [root@localhost ~]# systemctl status ntpd.service โ— ntpd.service - Network Time Service Loaded: loaded (/usr/lib/systemd/system/ntpd.service; enabled; vendor preset: disabled) Active: inactive (dead) NTP ์„œ๋น„์Šค Config ์„ค์ • ๋ฐฉ๋ฒ• - /etc/ntp.conf ํŒŒ์ผ ํ™•์ธ - ์‚ฌ์šฉํ•  NTP ์„œ๋ฒ„ ์ถ”๊ฐ€ - ์ธํ„ฐ๋„ท ๊ฒ€์ƒ‰ํ•˜.. 2022. 8. 6.
[Mac OS] ๋งˆ์šฐ์Šค, ํŠธ๋ž™ํŒจ๋“œ ๊ฐ๊ฐ ๋ฐ˜์ „ ์„ค์ • ํ•˜๋Š” ๋ฐฉ๋ฒ• [ Mac OS, ๋งˆ์šฐ์Šค, ํŠธ๋ž™ํŒจ๋“œ ๊ฐ๊ฐ ๋ฐ˜์ „ ์„ค์ • ํ•˜๋Š” ๋ฐฉ๋ฒ• ] Windows OS ๋ฅผ ์‚ฌ์šฉํ•˜๋‹ค๊ฐ€ Mac OS ๋ฅผ ์‚ฌ์šฉํ•˜๋ฉด์„œ ์Šคํฌ๋กค ๋ฐฉํ–ฅ์ด ์ข€ ์ด์ƒํ•˜๊ฒŒ ๋˜์–ด ์žˆ๋‹ค;; ํŠธ๋ž™ํŒจ๋“œ๋Š” ์ผ๋ฐ˜ Windows ๋ฐฉํ–ฅ๊ณผ ๋™์ผํ•œ๋ฐ ๋งˆ์šฐ์Šค ์—ฐ๊ฒฐ์„ ํ•˜๋‹ˆ ๋ฐ˜๋Œ€๋กœ ์›€์ง์ธ๋‹ค.. ์•„๋ž˜ ์„ค์ • ์ฒ˜๋Ÿผ ์ฒดํฌ๋ฅผ ํ•˜๋ฉด ๋ฐฉํ–ฅ์„ ๋ฐ˜์ „ ์‹œํ‚ฌ ์ˆ˜ ์žˆ์ง€๋งŒ.. ์ฒดํฌํ•˜๋ฉด ํŠธ๋ž™ํŒจ๋“œ ๋ฐฉํ–ฅ์ด ์ด์ œ ๋ฐ˜๋Œ€๋กœ ๋˜๋ฒ„๋ฆฐ๋‹ค... ์™œ ์ด๋ ‡๊ฒŒ ํ•ด ๋†“์€๊ฑด์ง€ ์•„๋ž˜ ํ”„๋กœ๊ทธ๋žจ์„ ์ด์šฉํ•˜๋ฉด ๋งˆ์šฐ์Šค์™€ ํŠธ๋ž™ํŒจ๋“œ๋ฅผ ๊ฐœ๋ณ„์ ์œผ๋กœ ์ œ์–ด ๊ฐ€๋Šฅ ํ•˜๋‹ค. Scroll Reverser Per-device scrolling preferences for MacOS. pilotmoon.com ํŒŒ์ผ ๋‹ค์šด๋กœ๋“œ ๋ฐ ์‹คํ–‰์„ ํ•˜๋ฉด ์•„๋ž˜ ์„ค์ • ํ™”๋ฉด์ด ๋‚˜์˜จ๋‹ค - ์•„๋ž˜ Scroll Reverser '์ฒดํฌ ๋ฐ•์Šค' ์ฒดํฌ - .. 2022. 8. 4.
Windows DNS ์„œ๋น„์Šค Port Windows ์„œ๋ฒ„์— IPsec(๋กœ์ปฌ๋ณด์•ˆ์ •์ฑ…)์„ ์ด์šฉํ•˜์—ฌ ๋‹ค๋ฅธ ์™ธ๋ถ€ ๋„คํŠธ์›Œํฌ๋ฅผ ์ฐจ๋‹จ ํ–ˆ๋‹ค. ๊ทธ๋Ÿฌ๋‹ค ๋ณด๋‹ˆ DNS ์„œ๋น„์Šค ๋˜ํ•œ ์ž‘๋™ํ•˜์ง€ ์•Š๋Š”๋‹ค... Microsoft ๊ธฐ์ˆ  ๋ฌธ์„œ ํ™•์ธ ํ•ด๋ณด๋‹ˆ DNS ๋Š” TCP/UDP 53 port ๋ฅผ ์‚ฌ์šฉํ•œ๋‹ค๊ณ  ํ•œ๋‹ค. AD ๋„๋ฉ”์ธ ๋ฐ ํŠธ๋Ÿฌ์ŠคํŠธ์— ๋Œ€ํ•œ ๋ฐฉํ™”๋ฒฝ ๊ตฌ์„ฑ - Windows Server ๋„๋ฉ”์ธ ๊ฐ„์˜ ํŠธ๋Ÿฌ์ŠคํŠธ ๊ด€๊ณ„๋ฅผ ๊ตฌ์„ฑํ•  ๋•Œ ์‚ฌ์šฉ๋˜๋Š” ํฌํŠธ์— ๋Œ€ํ•ด ์„ค๋ช…ํ•ฉ๋‹ˆ๋‹ค. docs.microsoft.com ์œ„์— ์ด๋ฏธ์ง€ ์ฒ˜๋Ÿผ ์ •์ฑ… ์„ค์ • ํ›„ nslookup (DNS) ํ•˜๋‹ˆ ๋ฌธ์ œ ์—†์ด ์ž˜ ์ž‘๋™ ํ•œ๋‹ค! 2022. 7. 10.