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2019೥3݄9೔ ୈ6ճ ϋχʔϙολʔٕज़ަྲྀձ ϋχʔϙοτͷϩάΛࠃผͰ ܏޲෼ੳͯ͠Έͨ @morihi_soc

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ϋχʔϙοτͷϩάΛࠃผͰ܏޲෼ੳͯ͠Έͨ 2 XIPBNJ w ৿ٱ࿨ত !NPSJIJ@TPD  w ຊۀ͸ωοτϫʔΫηΩϡϦςΟΤϯδχΞɾΞφϦετ w झຯͰϋχʔϙοτͷӡ༻Λ͢Δϋχʔϙολʔ w ϒϩάˠIUUQTXXXNPSJIJTPDOFU w ϋχʔϙολʔٕज़ަྲྀձओ࠵ऀ w IUUQTIBOJQPUFDIDPOOQBTTDPN ࠓ·Ͱʹ͓ੈ࿩ʹͳͬͨΠϕϯτ(Ұ෦) ɾ*5,FZT ݱ4FD$BQ  ɾωοτϫʔΫύέοτΛಡΉձ Ծ  ɾ/*4$αΠόʔϋϩ΢Οϯ ɾ*OUFSOFU8FFLɾ)BSEFOJOH ɾTTNKQɾ"*4FDɾ4UVEZ$PEF ɾULULηΩϡϦςΟษڧձ ɾ૯ؔ੢αΠόʔηΩϡϦςΟ-5େձ ɾ08"41/BHPZBɾ*P54FD+1 ɾ͢ΈͩηΩϡϦςΟษڧձ ग़൛ͨ͠ຊ΍ٕज़ಉਓࢽ NEW 2018೥10݄ˣ

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ϋχʔϙοτͷϩάΛࠃผͰ܏޲෼ੳͯ͠Έͨ ͓඼ॻ͖ w ֓ཁ w ஫ҙͱ͓அΓ w άϥϑͷݟํ w ੬ऑੑҰཡ w ࠃผͷ߈ܸݕ஌܏޲ w ·ͱΊ w ͓·͚ 8FCඇެ։ 3

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ϋχʔϙοτͷϩάΛࠃผͰ܏޲෼ੳͯ͠Έͨ ֓ཁ w .JSBJϘοτωοτͷ୆಄Λ͸͡Ίɺ*P5ػثΛૂͬ ͨ߈ܸ͕ઈ͑ͣ࿩୊ʹ্͕͍ͬͯ·͢ɻ w ϋχʔϙοτʹؔ͢ΔൃදΛ͍ͯ͠Δͱɺͨ·ʹࠃ ผͷ߈ܸݕ஌܏޲Λ஌Γ͍ͨͱ͍͏ཁ๬Λड͚Δ͜ ͱ͕͋Γ·͢ɻ w ϋχʔϙοτͰݕ஌ͨ͠*P5ػثΛૂͬͨ߈ܸͷϩ άΛݩʹͯ͠ࠃผͷ܏޲Λௐࠪͯ͠Έ·ͨ͠ɻ 4

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ϋχʔϙοτͷϩάΛࠃผͰ܏޲෼ੳͯ͠Έͨ w ஫ҙ w ຊࢿྉ͸ɺݸਓͰ؅ཧ͍ͯ͠ΔϋχʔϙοτͷϩάΛݩʹ࡞੒͠·ͨ͠ w ϋχʔϙοτ͸ੈքΧࠃʹ෼ࢄͯ͠ઃஔ͍ͯ͠·͢ w ಛఆͷࠃ΍૊৫ "4΍*41ͳͲ Λඇ೉΍ᎏ᎐͢Δ໨తͰ͸͋Γ·ͤΜ w ͋͘·Ͱɺաڈͷ߈ܸ܏޲Λࣔ͢ͷΈͰ͢ w ͓அΓ w ࠃͷूܭʹ͸ɺϋχʔϙοτͷϩάͱͯ͠ه࿥͞Ε͍ͯΔૹ৴ݩϗετ ͷʮ*1ΞυϨεʯΛج४ͱ͍ͯ͠·͢ w ૹ৴ݩϗετͷར༻ऀ͕ඞͣ͠΋ѱҙ͋Δ߈ܸऀͱ͸ݶΓ·ͤΜ w ͨͱ͑͹ͳΜΒ͔ͷݪҼͰ৐ͬऔΒΕͯ͠·ͬͨϗετΛ౿Έ୆ͱͯ͠ ୈࡾऀ͕ ѱҙΛ࣋ͬͯ ࢖͍ͬͯΔՄೳੑ͕͋Γ·͢ w ͨͩຊࢿྉͷதͰ͸ɺ௚ײతͳΘ͔Γ΍͢͞Λ༏ઌ͢ΔͨΊʹɺૹ৴ݩ Λ߈ܸݩͱදݱ͠·͢ ஫ҙͱ͓அΓ 5 ௐࠪظؒɿ2018೥1݄1೔-2018೥12݄31೔ ஫ҙ ͓அΓ IP ΞυϨεͷࠃͷࣝผʹ͸ MaxMind ࣾͷ GeoLite2 Λ࢖༻͠·ͨ͠ɻ

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ϋχʔϙοτͷϩάΛࠃผͰ܏޲෼ੳͯ͠Έͨ άϥϑͷݟํ w ੬ऑੑ͝ͱʹͭͷάϥϑΛܝࡌ͍ͯ͠·͢ɻ 6 ߈ܸݩͷࠃผ ԁάϥϑ ϋχʔϙοτͷࠃผ Ϩʔμʔνϟʔτ Ͳ͜ͷࠃͷ IP ͔Β߈ܸ͕ ଟ͔ͬͨͷ͔ΛಡΈऔΕΔɻ ϘοτωοτԽͨ͠ϗετͷ
 ଘࡏ਺(܏޲)ͷࢦඪʹͳΔɻ (ϢχʔΫ IP ͷࠃ Top 10) Ͳ͜ͷࠃͰ২͑ͨϋχʔϙοτ ͕߈ܸΛड͚΍͔ͬͨ͢ͷ͔Λ ಡΈऔΕΔ(ͨͩ͠ฏۉ஋)ɻ ߈ܸର৅ʹͳͬͨ৔߹ͷ
 ߈ܸͷड͚΍͢͞ͷࢦඪʹͳΔɻ ※IP ΞυϨε͝ͱͷճ਺͸ߟྀ͠·ͤΜ

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ϋχʔϙοτͷϩάΛࠃผͰ܏޲෼ੳͯ͠Έͨ ੬ऑੑҰཡ  "75&$)*1$BNFSB/73%73σόΠε  %-JOLػثͷDPNNBOEQIQ  %-JOLػثͷ)/"140"1"DUJPO  %-JOL%4-#  &O(FOJVT&O4IBSF*P5(JHBCJU$MPVE4FSWJDF  (10/ϧʔλ  )VBXFJ3PVUFS)(  -JOLTZT&TFSJFT  3FBMUFL4%,.JOJJHE61O140"1  ;ZYFMϧʔλ 7 ※࣮ࡍͷ߈ܸ௨৴͸লུɻ௨৴ͷࢀߟ৘ใ↓ https://www.paloaltonetworks.jp/company/in-the-news/2018/unit42-finds-new-mirai-gafgyt-iotlinux-botnet-campaigns https://www.paloaltonetworks.jp/company/in-the-news/2018/unit42-multi-exploit-iotlinux-botnets-mirai-gafgyt-target-apache-struts-sonicwall

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ϋχʔϙοτͷϩάΛࠃผͰ܏޲෼ੳͯ͠Έͨ "75&$)*1$BNFSB/73%73σόΠε 8 •ΪϦγϟͱΠϯυωγΞ͔Βͷ߈ܸ͕ଟ͔ͬͨ ࠨ:GR:ΪϦγϟ, ID:ΠϯυωγΞ, US:ΞϝϦΧ, CN:தࠃ, VN:ϕτφϜ, DE:υΠπ, DO:υϛχΧڞ࿨ࠃ, RU:ϩγΞ, MX:ϝΩγί, IT:ΠλϦΞ ӈ:US:ΞϝϦΧ, CA:Χφμ, AU:ΦʔετϥϦΞ, DE:υΠπ, FR:ϑϥϯε, IN:Πϯυ, NL:Φϥϯμ, SG:γϯΨϙʔϧ, UK:ΠΪϦε ΪϦγϟͷ 153ݸͷ IP͔Β߈ܸ ΦʔετϥϦΞʹ২͑ͨ ϋχʔϙοτͰ͸1୆͋ͨΓ ฏۉ45ճͷ߈ܸΛड͚ͨ

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ϋχʔϙοτͷϩάΛࠃผͰ܏޲෼ੳͯ͠Έͨ %-JOLػثͷDPNNBOEQIQ 9 •ϒϥδϧ͔Βͷ߈ܸ͕΄ͱΜͲͩͬͨ ࠨ:BR:ϒϥδϧ, DK:σϯϚʔΫ, US:ΞϝϦΧ, TR:τϧί, KR:ؖࠃ, JP:೔ຊ, IT:ΠλϦΞ, CN:தࠃ, CA:Χφμ, CO:ίϩϯϏΞ ӈ:US:ΞϝϦΧ, CA:Χφμ, AU:ΦʔετϥϦΞ, DE:υΠπ, FR:ϑϥϯε, IN:Πϯυ, NL:Φϥϯμ, SG:γϯΨϙʔϧ, UK:ΠΪϦε ࢀߟɿ2018೥ͷ IoT Ϙοτ؍ଌঢ়گͱ࠷ۙͷಈ޲ https://sect.iij.ad.jp/d/2019/01/288147.html

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ϋχʔϙοτͷϩάΛࠃผͰ܏޲෼ੳͯ͠Έͨ %-JOLػثͷ)/"140"1"DUJPO 10 •ΤδϓτͱϕτφϜ͔Βͷ߈ܸ͕ଟ͔ͬͨ ࠨ:EG:Τδϓτ, VN:ϕτφϜ, BR:ϒϥδϧ, RU:ϩγΞ, IT:ΠλϦΞ, CN:தࠃ, FR:ϑϥϯε, NG:φΠδΣϦΞ, KR:ؖࠃ, KZ:Χβϑελϯ ӈ:US:ΞϝϦΧ, CA:Χφμ, AU:ΦʔετϥϦΞ, DE:υΠπ, FR:ϑϥϯε, IN:Πϯυ, NL:Φϥϯμ, SG:γϯΨϙʔϧ, UK:ΠΪϦε ࢀߟɿJSOC INSIGHT vol.22 https://www.lac.co.jp/lacwatch/pdf/20190206_jsoc_f001w.pdf

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ϋχʔϙοτͷϩάΛࠃผͰ܏޲෼ੳͯ͠Έͨ %-JOL%4-# 11 •ΤδϓτͱϕτφϜ͔Βͷ߈ܸ͕ଟ͔ͬͨ ࠨ:EG:Τδϓτ, VN:ϕτφϜ, RU:ϩγΞ, IT:ΠλϦΞ, BR:ϒϥδϧ, JP:೔ຊ, CN:தࠃ, KR:ؖࠃ, US:ΞϝϦΧ, FR:ϑϥϯε ӈ:US:ΞϝϦΧ, CA:Χφμ, AU:ΦʔετϥϦΞ, DE:υΠπ, FR:ϑϥϯε, IN:Πϯυ, NL:Φϥϯμ, SG:γϯΨϙʔϧ, UK:ΠΪϦε ࢀߟɿʲΤόϯδΣϦετɾϘΠεʳIoTϚϧ΢ΣΞʹΑΔ߈ܸ͸ର؛ͷՐࣄͩͱࢥ͍ͬͯ·ͤΜ͔ʁ https://www.idnet.co.jp/column/page_020.html

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ϋχʔϙοτͷϩάΛࠃผͰ܏޲෼ੳͯ͠Έͨ &O(FOJVT&O4IBSF*P5(JHBCJU$MPVE4FSWJDF 12 •ΞϝϦΧɺγϯΨϙʔϧɺ୆࿷͔Βͷ߈ܸ͕ଟ͔ͬͨ ࠨ:US:ΞϝϦΧ, SG:γϯΨϙʔϧ, TW:୆࿷, CA:Χφμ, HK:߳ߓ, KR:ؖࠃ, SE:ε΢Σʔσϯ, CZ:νΣί, MY:ϚϨʔγΞ, UK:ΠΪϦε ӈ:US:ΞϝϦΧ, CA:Χφμ, AU:ΦʔετϥϦΞ, DE:υΠπ, FR:ϑϥϯε, IN:Πϯυ, NL:Φϥϯμ, SG:γϯΨϙʔϧ, UK:ΠΪϦε

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ϋχʔϙοτͷϩάΛࠃผͰ܏޲෼ੳͯ͠Έͨ (10/ϧʔλ 13 •ϝΩγί͔Βͷ߈ܸ͕ଟ͔ͬͨ ࠨ:MX:ϝΩγί, EC:ΤΫΞυϧ, EG:Τδϓτ, GE:δϣʔδΞ, IR:Πϥϯ, VN:ϕτφϜ, CN:தࠃ, BR:ϒϥδϧ, AM:ΞϧϝχΞ, DE:υΠπ ӈ:US:ΞϝϦΧ, CA:Χφμ, AU:ΦʔετϥϦΞ, DE:υΠπ, FR:ϑϥϯε, IN:Πϯυ, NL:Φϥϯμ, SG:γϯΨϙʔϧ, UK:ΠΪϦε ࢀߟɿՈఉ༻ GPON ϧʔλͷ੬ऑੑΛૂ͏ʮMiraiʯͷѥछɺϝΩγίൃͷωοτϫʔΫεΩϟϯ׆ಈͰ֬ೝ https://blog.trendmicro.co.jp/archives/17453

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ϋχʔϙοτͷϩάΛࠃผͰ܏޲෼ੳͯ͠Έͨ )VBXFJ3PVUFS)( 14 •Φϥϯμʹ২͑ͨϋχʔϙοτʹର͢Δ߈ܸ͕ଟ͔ͬͨ ࠨ:RU:ϩγΞ, CN:தࠃ, VN:ϕτφϜ, JP:೔ຊ, US:ΞϝϦΧ, ID:ΠϯυωγΞ, GR:ΪϦγϟ, KR:ؖࠃ, EC:ΤΫΞυϧ, BR:ϒϥδϧ ӈ:US:ΞϝϦΧ, CA:Χφμ, AU:ΦʔετϥϦΞ, DE:υΠπ, FR:ϑϥϯε, IN:Πϯυ, NL:Φϥϯμ, SG:γϯΨϙʔϧ, UK:ΠΪϦε ࢀߟɿMiraiͷϫʔϜܕѥछͷ׆ಈ͕׆ൃԽ https://www.fortinet.co.jp/blog/threat-research/rise-of-one-more-mirai-worm-variant.html

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ϋχʔϙοτͷϩάΛࠃผͰ܏޲෼ੳͯ͠Έͨ -JOLTZT&TFSJFT 15 •ϒϥδϧͱϕτφϜ͔Βͷ߈ܸ͕ଟ͔ͬͨ ࠨ:BR:ϒϥδϧ, VN:ϕτφϜ, CN:தࠃ, US:ΞϝϦΧ, RU:ϩγΞ, IN:Πϯυ, AR:Ξϧθϯνϯ,UA:΢ΫϥΠφ, NG:φΠδΣϦΞ, IT:ΠλϦΞ ӈ:US:ΞϝϦΧ, CA:Χφμ, AU:ΦʔετϥϦΞ, DE:υΠπ, FR:ϑϥϯε, IN:Πϯυ, NL:Φϥϯμ, SG:γϯΨϙʔϧ, UK:ΠΪϦε

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ϋχʔϙοτͷϩάΛࠃผͰ܏޲෼ੳͯ͠Έͨ 3FBMUFL4%,.JOJJHE61O140"1 16 •Τδϓτͱ೔ຊ͔Βͷ߈ܸ͕ଟ͔ͬͨ ࠨ:EG:Τδϓτ, JP:೔ຊ, IT:ΠλϦΞ, CN:தࠃ, RU:ϩγΞ, US:ΞϝϦΧ, FR:ϑϥϯε, GE:δϣʔδΞ, NL:Φϥϯμ, TW:୆࿷ ӈ:US:ΞϝϦΧ, CA:Χφμ, AU:ΦʔετϥϦΞ, DE:υΠπ, FR:ϑϥϯε, IN:Πϯυ, NL:Φϥϯμ, SG:γϯΨϙʔϧ, UK:ΠΪϦε

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ϋχʔϙοτͷϩάΛࠃผͰ܏޲෼ੳͯ͠Έͨ ;ZYFMϧʔλ 17 •೔ຊ͔Βͷ߈ܸ͕ଟ͔ͬͨ ࢀߟɿSatori ܥϘοτωοτ؍࡯ Attack from Japan https://speakerdeck.com/morihi_soc/satori-xi-hotutonetutoguan-cha-attack-from-japan ࠨ:JP:೔ຊ, FR:ϑϥϯε, IT:ΠλϦΞ, US:ΞϝϦΧ, KR:ؖࠃ, CN:தࠃ, VE:ϕτφϜ, RO:ϧʔϚχΞ,RE:ϨϢχΦϯ, GR:ΪϦγϟ, GF:ΪΞφ, DE: υΠπ ӈ:US:ΞϝϦΧ, CA:Χφμ, AU:ΦʔετϥϦΞ, DE:υΠπ, FR:ϑϥϯε, IN:Πϯυ, NL:Φϥϯμ, SG:γϯΨϙʔϧ, UK:ΠΪϦε

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ϋχʔϙοτͷϩάΛࠃผͰ܏޲෼ੳͯ͠Έͨ ·ͱΊ w *P5ͷ੬ऑੑΛૂͬͨ߈ܸΛݸऔΓ্͛ͯɺࠃผ ͷ߈ܸ܏޲ͱϋχʔϙοτʹର͢Δ߈ܸͷ܏޲Λௐ ࠪ͠ɺ঺հͨ͠ɻ 18

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ϋχʔϙοτͷϩάΛࠃผͰ܏޲෼ੳͯ͠Έͨ 19 )BQQZ)POFZQPU ↑2018೥10݄21೔ ौ୩۠;Ε͍͋২෺ηϯλʔͰࡱӨ ͓͠·͍

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⬛⬛⬛⬛Λड͚͍ͯΔࠃ͔ΒͷΞΫηε ͓Αͼ ⬛อ༗ࠃ͔ΒͷΞΫηε ձ৔ͷΈެ։

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ո෺ͱಆ͏ऀ͸ɺͦͷաఔͰࣗΒ͕ո෺ͱԽ͞͵Α͏৺ͤΑɻ ͓·͕͑௕͘ਂ෵Λ೷͘ͳΒ͹ɺ ਂ෵΋·ͨ౳͓͘͠·͑Λݟฦ͢ͷͩɻ (߈ܸऀ) (߈ܸऀ) (ϋχʔϙοτ) (ϋχʔϙολʔ)