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8PSE1SFTTϓϩδΣΫτͷ
͜Ε͔Β
8PSE$BNQ5PLZP
ٶོߦ
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݄̎ͷηΩϡϦςΟϗʔϧʹ
͍ͭͯͷӅ͞ΕͨܦҢ
1. ηΩϡϦςΟاۀ͕ηΩϡϦςΟϗʔϧΛൃݟɻଈ࠲ʹίΞνʔϜͱͦͷاۀ͕ɺ
ͦͷηΩϡϦςΟϗʔϧΛ༻ͨ͠߈ܸͷ༗ແΛ֬ೝɻ
=> ͳ͔ͬͨɻ
2. ύονΛ࡞ɻίϛϡχςΟͷϗεςΟϯάاۀʹ࿈བྷɻ͜ͷ࣌Ͱଟ͘ͷϗε
ςΟϯάاۀͰWAFͰ෧͡ࠐΊΔ͜ͱʹޭͨ͠ɻ
=> ϗεςΟϯάاۀͷϩάͰ߈ܸθϩͩͬͨɻ
3. मਖ਼൛ΛϦϦʔεɻ͜ͷ࣌ͰηΩϡϦςΟϗʔϧʹ͍ͭͯඇެ։
=> ͜ͷ࣌Ͱ߈ܸθϩɻ
4. ࣗಈΞοϓσʔτ͕ߦ͖ΔͷΛͬͨޙʹɺࣗಈΞοϓσʔτΛࢭΊ͍ͯΔϢʔ
βʔ͕͍Δ͜ͱΛఆͯ͠ηΩϡϦςΟใΛ։ࣔɻ
=> ެද࣌Ͱ߈ܸθϩͩͬͨɻ
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ࣗಈΞοϓσʔτΛΦϑʹ͍ͯ͠ΔαΠτΛத৺ʹ
େྔʹඃ
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NHNςίϥεɺXSERVERɺ͘͞ΒΠϯλʔωοτ
ϑΝʔεταʔόʔɺϔςϜϧ
ϩϦϙοϓ
JPCERT JPηΩϡΞ
ڞ༗αʔόʔΛఏڙ͍ͯ͠ΔاۀηΩϡϦςΟاۀͱ
ηΩϡϦςΟϗʔϧʹରͯ͠ڠྗͯ͠औΓΉɻ
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%JTUSJCVUFE6OJU5FTU
XSERVER
͘͞ΒΠϯλʔωοτ
ϩϦϙοϓ
ϗεςΟϯάاۀͷΠϯϑϥͰఆظతʹϢχοτςετΛ࣮ߦ͢Δɻ
͠ςετʹΤϥʔ͕͋ΕࣗಈతʹίΞνʔϜͱڞ༗ɻ
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1)1
ຊޠͷαΠτ 6%
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4FSWF)BQQZϓϩδΣΫτ
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wp checksum plugin
wp checksum theme
ϓϥάΠϯςʔϚͷվ͟ΜΛݕग़͢ΔͨΊͷ"1*Λ։ൃ༧ఆ
ίΞҎԼͷWP-CLIίϚϯυͰ֬ೝՄೳ
wp checksum core
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࣍ੈͷυΩϡϝϯταΠτ
ຊ͔ΒཱՖ͞Μͱ͕ࢀՃɻ
ࠃࡍԽʹ͍ͭͯ·ͩະఆɻ
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Ϣʔβʔͷօ͞Μ
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• ޙํޓੑकΓ·͢ɻ
• ࣗಈΞοϓσʔτΦϑʹ͠ͳ͍Ͱɻ
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ίϛϡχςΟͷօ͞Μ
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ͦ͜ʹ͍Δ͚ͩͰ՝Λ
ೝࣝͤ͞Δ͜ͱ͕Ͱ͖·͢ɻ
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(FU*OWPMWFE