Talos:可手動防禦最新勒索軟件
如果用戶沒有安裝Cisco的安全設備,
- 如果用戶有防火牆,可以通過防火牆封鎖惡意軟件的傳輸埠139及445,通過防火牆封鎖下面的惡意回連伺服器地址,防止已經被安裝了勒索軟件的主機被遠端執行加密動作:
- 188.166.23.127
- 193.23.244.244
- 2.3.69.209
- 146.0.32.144
- 50.7.161.218
- 217.79.179.77
- 128.31.0.39
- 213.61.66.116
- 212.47.232.237
- 81.30.158.223
- 79.172.193.32
- 89.45.235.21
- 38.229.72.16
- 188.138.33.220
如果用戶的防火牆可以控制功能變數名稱,可以對下面的功能變數名稱進行阻擋:
http://iuqerfsodp9ifjaposdfjhgosurijfaewrwergwea.com/
- 如果用戶又能夠對檔案傳輸進行控制的平台,建議對下列檔案名進行阻擋,防止惡意軟件進入網絡:
l d5e0e8694ddc0548d8e6b87c83d50f4ab85c1debadb106d6a6a794c3e746f4fa b.wnry
l 055c7760512c98c8d51e4427227fe2a7ea3b34ee63178fe78631fa8aa6d15622 c.wnry
l 402751fa49e0cb68fe052cb3db87b05e71c1d950984d339940cf6b29409f2a7c r.wnry
l e18fdd912dfe5b45776e68d578c3af3547886cf1353d7086c8bee037436dff4b s.wnry
l 4a468603fdcb7a2eb5770705898cf9ef37aade532a7964642ecd705a74794b79 taskdl.exe
l 2ca2d550e603d74dedda03156023135b38da3630cb014e3d00b1263358c5f00d taskse.exe
l 97ebce49b14c46bebc9ec2448d00e1e397123b256e2be9eba5140688e7bc0ae6 t.wnry
l b9c5d4339809e0ad9a00d4d3dd26fdf44a32819a54abf846bb9b560d81391c25 u.wnry
- 如果用戶的檔案傳輸控制平台,可以基於Hash值檔進行控制,那就更好了,可以對下面的Hash值檔進行阻擋:
- ed01ebfbc9eb5bbea545af4d01bf5f1071661840480439c6e5babe8e080e41aa
- c365ddaa345cfcaff3d629505572a484cff5221933d68e4a52130b8bb7badaf9
- 09a46b3e1be080745a6d8d88d6b5bd351b1c7586ae0dc94d0c238ee36421cafa
- 0a73291ab5607aef7db23863cf8e72f55bcb3c273bb47f00edf011515aeb5894
- 428f22a9afd2797ede7c0583d34a052c32693cbb55f567a60298587b6e675c6f
- 5c1f4f69c45cff9725d9969f9ffcf79d07bd0f624e06cfa5bcbacd2211046ed6
- 62d828ee000e44f670ba322644c2351fe31af5b88a98f2b2ce27e423dcf1d1b1
- 72af12d8139a80f317e851a60027fdf208871ed334c12637f49d819ab4b033dd
- 85ce324b8f78021ecfc9b811c748f19b82e61bb093ff64f2eab457f9ef19b186
- a1d9cd6f189beff28a0a49b10f8fe4510128471f004b3e4283ddc7f78594906b
- a93ee7ea13238bd038bcbec635f39619db566145498fe6e0ea60e6e76d614bd3
- b43b234012b8233b3df6adb7c0a3b2b13cc2354dd6de27e092873bf58af2693c
- eb47cd6a937221411bb8daf35900a9897fb234160087089a064066a65f42bcd4
- 24d004a104d4d54034dbcffc2a4b19a11f39008a575aa614ea04703480b1022c
- 24d004a104d4d54034dbcffc2a4b19a11f39008a575aa614ea04703480b1022c
- 2c2d8bc91564050cf073745f1b117f4ffdd6470e87166abdfcd10ecdff040a2e
- 7a828afd2abf153d840938090d498072b7e507c7021e4cdd8c6baf727cafc545
- a897345b68191fd36f8cefb52e6a77acb2367432abb648b9ae0a9d708406de5b
- fb0b6044347e972e21b6c376e37e1115dab494a2c6b9fb28b92b1e45b45d0ebc
- 9588f2ef06b7e1c8509f32d8eddfa18041a9cc15b1c90d6da484a39f8dcdf967
- b43b234012b8233b3df6adb7c0a3b2b13cc2354dd6de27e092873bf58af2693c
- 4186675cb6706f9d51167fb0f14cd3f8fcfb0065093f62b10a15f7d9a6c8d982
- 09a46b3e1be080745a6d8d88d6b5bd351b1c7586ae0dc94d0c238ee36421cafa
- 如果用戶有可以自訂制簽名庫的IPS平台,可以到snort.org上購買最新的規則庫Snort Rule: 42329-42332,42340,41978,根據這些規則轉換成用戶IPS的相應簽名庫。
- 針對Windows 系統,進行最新的修補軟件加固,尤其是MS17-010
Cisco Talos提供全球最新最全的安全情報分析,幫助用戶全面瞭解最新的安全威脅,最有效的防禦方法。
參情請參考http://blog.talosintelligence.com/