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Message-ID: <20191103022406.GA14847@pi3.com.pl> Date: Sun, 3 Nov 2019 03:24:06 +0100 From: Adam Zabrocki <pi3@....com.pl> To: lkrg-users@...ts.openwall.com Subject: Re: "SYSTEM HAS BEEN COMPROMISED" - false positive. Kernel 5.3.7 Centos 7 Hi, You can try reach me on #LKRG @ freenode. However, next 2 weeks I might be offline (or hacing very limited access to the internet). Thanks, Adam On Sun, Nov 03, 2019 at 12:11:03AM +0100, bryn1u85 . wrote: > Hey Adam, > > Thanks for your help. > > 18.171127] OOM killer enabled. > [ 18.171128] Restarting tasks ... done. > [ 18.196220] [p_lkrg] Disabling "clean" message. > [ 18.290631] [p_lkrg] [JUMP_LABEL <batch mode>] Updating kernel core > .text section hash! > [ 22.387093] e1000e: eth0 NIC Link is Up 1000 Mbps Full Duplex, Flow > Control: None > [ 22.387464] IPv6: ADDRCONF(NETDEV_CHANGE): eth0: link becomes ready > [ 25.485560] [p_lkrg] [JUMP_LABEL <batch mode>] Updating kernel core > .text section hash! > [ 25.503701] [p_lkrg] [JUMP_LABEL <batch mode>] Updating kernel core > .text section hash! > [ 25.513051] [p_lkrg] [JUMP_LABEL <batch mode>] Updating kernel core > .text section hash! > [ 31.184558] [p_lkrg] [JUMP_LABEL <batch mode>] Updating kernel core > .text section hash! > [ 46.322846] [p_lkrg] [JUMP_LABEL <batch mode>] Updating kernel core > .text section hash! > [ 46.346990] [p_lkrg] [JUMP_LABEL <batch mode>] Updating kernel core > .text section hash! > [ 46.524453] [p_lkrg] [JUMP_LABEL <batch mode>] Updating kernel core > .text section hash! > [ 46.546939] [p_lkrg] [JUMP_LABEL <batch mode>] Updating kernel core > .text section hash! > [ 46.728217] [p_lkrg] [JUMP_LABEL <batch mode>] Updating kernel core > .text section hash! > [ 46.750910] [p_lkrg] [JUMP_LABEL <batch mode>] Updating kernel core > .text section hash! > [ 46.944593] [p_lkrg] [JUMP_LABEL <batch mode>] Updating kernel core > .text section hash! > [ 1669.160381] [p_lkrg] [JUMP_LABEL <batch mode>] Updating kernel core > .text section hash! > [ 1669.173841] [p_lkrg] [JUMP_LABEL <batch mode>] Updating kernel core > .text section hash! > > Seems to be working ! > > Adam, is there any way to talk with you about lkrg experimental via > freenode ? > > Best regards, > Micha?? > > sob., 2 lis 2019 o 05:56 Adam Zabrocki <pi3@....com.pl> napisa??(a): > > > Hi, > > > > I've pushed some significant changes to the official repo. Linux kernel > > 5.3+ > > introduced new logic for JUMP_LABEL engine. New changes suppose to bring > > support for it, nevertheless I would still treat them as 'beta' so far. > > Please > > let me know in case of any problems. > > > > Thanks, > > Adam > > > > On Sun, Oct 27, 2019 at 03:31:48PM +0100, Adam Zabrocki wrote: > > > Hi, > > > > > > I will take a look on this soon. Sorry for delay. > > > > > > Best regards, > > > Adam > > > > > > On Thu, Oct 24, 2019 at 01:14:10PM +0200, bryn1u85 . wrote: > > > > Hey guys, > > > > > > > > After KRG installed and rebooted clear Centos 7 server with 5.3.7 > > kernel, > > > > im getting flase positive message that my system has been compromised. > > > > > > > > [ 15.215179] [p_lkrg] Verifying 20 potential UMH paths for > > whitelisting... > > > > > [ 15.215440] [p_lkrg] 4 UMH paths were whitelisted... > > > > > [ 15.770986] [p_lkrg] [kretprobe] register_kretprobe() for > > > > > <ovl_create_or_link> failed! [err=-22] > > > > > [ 15.771146] [p_lkrg] ERROR: Can't hook ovl_create_or_link > > function :( > > > > > [ 16.101128] [p_lkrg] System does NOT support SMEP. LKRG can't > > enforece > > > > > smep_panic :( > > > > > [ 16.101291] [p_lkrg] LKRG initialized successfully! > > > > > [ 16.101388] OOM killer enabled. > > > > > [ 16.101389] Restarting tasks ... done. > > > > > [ 16.111918] [p_lkrg] Disabling "clean" message. > > > > > [ 16.505143] [p_lkrg] ALERT !!! _STEXT MEMORY BLOCK HASH IS > > DIFFERENT - > > > > > it is [0x99211d6b4730d08c] and should be [0x853fd9c99ce7506e] !!! > > > > > [ 16.507699] [p_lkrg] ALERT !!! SYSTEM HAS BEEN COMPROMISED - > > DETECTED > > > > > DIFFERENT 1 CHECKSUMS !!! > > > > > [ 20.284601] [p_lkrg] ALERT !!! _STEXT MEMORY BLOCK HASH IS > > DIFFERENT - > > > > > it is [0x99211d6b4730d08c] and should be [0x853fd9c99ce7506e] !!! > > > > > [ 20.287154] [p_lkrg] ALERT !!! SYSTEM HAS BEEN COMPROMISED - > > DETECTED > > > > > DIFFERENT 1 CHECKSUMS !!! > > > > > [ 20.467062] e1000e: eth0 NIC Link is Up 1000 Mbps Full Duplex, > > Flow > > > > > Control: None > > > > > [ 20.467403] IPv6: ADDRCONF(NETDEV_CHANGE): eth0: link becomes > > ready > > > > > [ 20.473798] [p_lkrg] ALERT !!! _STEXT MEMORY BLOCK HASH IS > > DIFFERENT - > > > > > it is [0x99211d6b4730d08c] and should be [0x853fd9c99ce7506e] !!! > > > > > [ 20.476426] [p_lkrg] ALERT !!! SYSTEM HAS BEEN COMPROMISED - > > DETECTED > > > > > DIFFERENT 1 CHECKSUMS !!! > > > > > [ 20.487083] [p_lkrg] ALERT !!! _STEXT MEMORY BLOCK HASH IS > > DIFFERENT - > > > > > it is [0x99211d6b4730d08c] and should be [0x853fd9c99ce7506e] !!! > > > > > [ 20.489683] [p_lkrg] ALERT !!! SYSTEM HAS BEEN COMPROMISED - > > DETECTED > > > > > DIFFERENT 1 CHECKSUMS !!! > > > > > [ 20.552752] [p_lkrg] ALERT !!! _STEXT MEMORY BLOCK HASH IS > > DIFFERENT - > > > > > it is [0x99211d6b4730d08c] and should be [0x853fd9c99ce7506e] !!! > > > > > [ 20.557202] [p_lkrg] ALERT !!! SYSTEM HAS BEEN COMPROMISED - > > DETECTED > > > > > DIFFERENT 1 CHECKSUMS !!! > > > > > [ 20.567645] [p_lkrg] ALERT !!! _STEXT MEMORY BLOCK HASH IS > > DIFFERENT - > > > > > it is [0x99211d6b4730d08c] and should be [0x853fd9c99ce7506e] !!! > > > > > [ 20.570199] [p_lkrg] ALERT !!! SYSTEM HAS BEEN COMPROMISED - > > DETECTED > > > > > DIFFERENT 1 CHECKSUMS !!! > > > > > [ 21.449073] [p_lkrg] ALERT !!! _STEXT MEMORY BLOCK HASH IS > > DIFFERENT - > > > > > it is [0xd08e6ff0783c57b9] and should be [0x853fd9c99ce7506e] !!! > > > > > [ 21.452966] [p_lkrg] ALERT !!! SYSTEM HAS BEEN COMPROMISED - > > DETECTED > > > > > DIFFERENT 1 CHECKSUMS !!! > > > > > [ 22.757754] [p_lkrg] ALERT !!! _STEXT MEMORY BLOCK HASH IS > > DIFFERENT - > > > > > it is [0xa1ecee48b9020690] and should be [0x853fd9c99ce7506e] !!! > > > > > [ 22.760538] [p_lkrg] ALERT !!! SYSTEM HAS BEEN COMPROMISED - > > DETECTED > > > > > DIFFERENT 1 CHECKSUMS !!! > > > > > [ 23.427505] [p_lkrg] ALERT !!! _STEXT MEMORY BLOCK HASH IS > > DIFFERENT - > > > > > it is [0xa1ecee48b9020690] and should be [0x853fd9c99ce7506e] !!! > > > > > [ 23.429955] [p_lkrg] ALERT !!! SYSTEM HAS BEEN COMPROMISED - > > DETECTED > > > > > DIFFERENT 1 CHECKSUMS !!! > > > > > [ 23.452633] [p_lkrg] ALERT !!! _STEXT MEMORY BLOCK HASH IS > > DIFFERENT - > > > > > it is [0xa1ecee48b9020690] and should be [0x853fd9c99ce7506e] !!! > > > > > [ 23.456172] [p_lkrg] ALERT !!! SYSTEM HAS BEEN COMPROMISED - > > DETECTED > > > > > DIFFERENT 1 CHECKSUMS !!! > > > > > [ 23.467435] [p_lkrg] ALERT !!! _STEXT MEMORY BLOCK HASH IS > > DIFFERENT - > > > > > it is [0xa1ecee48b9020690] and should be [0x853fd9c99ce7506e] !!! > > > > > [ 23.470119] [p_lkrg] ALERT !!! SYSTEM HAS BEEN COMPROMISED - > > DETECTED > > > > > DIFFERENT 1 CHECKSUMS !!! > > > > > [ 23.480574] [p_lkrg] ALERT !!! _STEXT MEMORY BLOCK HASH IS > > DIFFERENT - > > > > > it is [0xa1ecee48b9020690] and should be [0x853fd9c99ce7506e] !!! > > > > > [ 23.483170] [p_lkrg] ALERT !!! SYSTEM HAS BEEN COMPROMISED - > > DETECTED > > > > > DIFFERENT 1 CHECKSUMS !!! > > > > > [ 23.520029] [p_lkrg] ALERT !!! _STEXT MEMORY BLOCK HASH IS > > DIFFERENT - > > > > > it is [0xa1ecee48b9020690] and should be [0x853fd9c99ce7506e] !!! > > > > > [ 23.523148] [p_lkrg] ALERT !!! SYSTEM HAS BEEN COMPROMISED - > > DETECTED > > > > > DIFFERENT 1 CHECKSUMS !!! > > > > > [ 23.949947] [p_lkrg] ALERT !!! _STEXT MEMORY BLOCK HASH IS > > DIFFERENT - > > > > > it is [0xa1ecee48b9020690] and should be [0x853fd9c99ce7506e] !!! > > > > > [ 23.954075] [p_lkrg] ALERT !!! SYSTEM HAS BEEN COMPROMISED - > > DETECTED > > > > > DIFFERENT 1 CHECKSUMS !!! > > > > > [ 24.709764] [p_lkrg] ALERT !!! _STEXT MEMORY BLOCK HASH IS > > DIFFERENT - > > > > > it is [0x9cda5720092fbda3] and should be [0x853fd9c99ce7506e] !!! > > > > > [ 24.713784] [p_lkrg] ALERT !!! SYSTEM HAS BEEN COMPROMISED - > > DETECTED > > > > > DIFFERENT 1 CHECKSUMS !!! > > > > > [ 25.314291] [p_lkrg] ALERT !!! _STEXT MEMORY BLOCK HASH IS > > DIFFERENT - > > > > > it is [0x9cda5720092fbda3] and should be [0x853fd9c99ce7506e] !!! > > > > > [ 25.318615] [p_lkrg] ALERT !!! SYSTEM HAS BEEN COMPROMISED - > > DETECTED > > > > > DIFFERENT 1 CHECKSUMS !!! > > > > > [ 27.216958] [p_lkrg] ALERT !!! _STEXT MEMORY BLOCK HASH IS > > DIFFERENT - > > > > > it is [0x9cda5720092fbda3] and should be [0x853fd9c99ce7506e] !!! > > > > > [ 27.221325] [p_lkrg] ALERT !!! SYSTEM HAS BEEN COMPROMISED - > > DETECTED > > > > > DIFFERENT 1 CHECKSUMS !!! > > > > > [ 31.553746] [p_lkrg] ALERT !!! _STEXT MEMORY BLOCK HASH IS > > DIFFERENT - > > > > > it is [0x9cda5720092fbda3] and should be [0x853fd9c99ce7506e] !!! > > > > > [ 31.557484] [p_lkrg] ALERT !!! SYSTEM HAS BEEN COMPROMISED - > > DETECTED > > > > > DIFFERENT 1 CHECKSUMS !!! > > > > > [ 46.916572] [p_lkrg] ALERT !!! _STEXT MEMORY BLOCK HASH IS > > DIFFERENT - > > > > > it is [0xf670e7f89c8e9175] and should be [0x853fd9c99ce7506e] !!! > > > > > [ 46.920946] [p_lkrg] ALERT !!! SYSTEM HAS BEEN COMPROMISED - > > DETECTED > > > > > DIFFERENT 1 CHECKSUMS !!! > > > > > [ 46.938976] [p_lkrg] ALERT !!! _STEXT MEMORY BLOCK HASH IS > > DIFFERENT - > > > > > it is [0xf670e7f89c8e9175] and should be [0x853fd9c99ce7506e] !!! > > > > > [ 46.943298] [p_lkrg] ALERT !!! SYSTEM HAS BEEN COMPROMISED - > > DETECTED > > > > > DIFFERENT 1 CHECKSUMS !!! > > > > > [ 61.849477] [p_lkrg] ALERT !!! _STEXT MEMORY BLOCK HASH IS > > DIFFERENT - > > > > > it is [0xf670e7f89c8e9175] and should be [0x853fd9c99ce7506e] !!! > > > > > [ 61.853839] [p_lkrg] ALERT !!! SYSTEM HAS BEEN COMPROMISED - > > DETECTED > > > > > DIFFERENT 1 CHECKSUMS !!! > > > > > [ 77.210168] [p_lkrg] ALERT !!! _STEXT MEMORY BLOCK HASH IS > > DIFFERENT - > > > > > it is [0xf670e7f89c8e9175] and should be [0x853fd9c99ce7506e] !!! > > > > > [ 77.214487] [p_lkrg] ALERT !!! SYSTEM HAS BEEN COMPROMISED - > > DETECTED > > > > > DIFFERENT 1 CHECKSUMS !!! > > > > > [ 92.570441] [p_lkrg] ALERT !!! _STEXT MEMORY BLOCK HASH IS > > DIFFERENT - > > > > > it is [0xf670e7f89c8e9175] and should be [0x853fd9c99ce7506e] !!! > > > > > [ 92.574755] [p_lkrg] ALERT !!! SYSTEM HAS BEEN COMPROMISED - > > DETECTED > > > > > DIFFERENT 1 CHECKSUMS !!! > > > > > [ 107.930713] [p_lkrg] ALERT !!! _STEXT MEMORY BLOCK HASH IS > > DIFFERENT - > > > > > it is [0xf670e7f89c8e9175] and should be [0x853fd9c99ce7506e] !!! > > > > > [ 107.935054] [p_lkrg] ALERT !!! SYSTEM HAS BEEN COMPROMISED - > > DETECTED > > > > > DIFFERENT 1 CHECKSUMS !!! > > > > > [ 123.291483] [p_lkrg] ALERT !!! _STEXT MEMORY BLOCK HASH IS > > DIFFERENT - > > > > > it is [0xf670e7f89c8e9175] and should be [0x853fd9c99ce7506e] !!! > > > > > [ 123.295817] [p_lkrg] ALERT !!! SYSTEM HAS BEEN COMPROMISED - > > DETECTED > > > > > DIFFERENT 1 CHECKSUMS !!! > > > > > [ 138.651453] [p_lkrg] ALERT !!! _STEXT MEMORY BLOCK HASH IS > > DIFFERENT - > > > > > it is [0xf670e7f89c8e9175] and should be [0x853fd9c99ce7506e] !!! > > > > > [ 138.655770] [p_lkrg] ALERT !!! SYSTEM HAS BEEN COMPROMISED - > > DETECTED > > > > > DIFFERENT 1 CHECKSUMS !!! > > > > > [ 144.437314] [p_lkrg] ALERT !!! _STEXT MEMORY BLOCK HASH IS > > DIFFERENT - > > > > > it is [0xf670e7f89c8e9175] and should be [0x853fd9c99ce7506e] !!! > > > > > [ 144.441864] [p_lkrg] ALERT !!! SYSTEM HAS BEEN COMPROMISED - > > DETECTED > > > > > DIFFERENT 1 CHECKSUMS !!! > > > > > [ 154.012063] [p_lkrg] ALERT !!! _STEXT MEMORY BLOCK HASH IS > > DIFFERENT - > > > > > it is [0xf670e7f89c8e9175] and should be [0x853fd9c99ce7506e] !!! > > > > > [ 154.016381] [p_lkrg] ALERT !!! SYSTEM HAS BEEN COMPROMISED - > > DETECTED > > > > > DIFFERENT 1 CHECKSUMS !!! > > > > > [ 169.372487] [p_lkrg] ALERT !!! _STEXT MEMORY BLOCK HASH IS > > DIFFERENT - > > > > > it is [0xf670e7f89c8e9175] and should be [0x853fd9c99ce7506e] !!! > > > > > [ 169.376807] [p_lkrg] ALERT !!! SYSTEM HAS BEEN COMPROMISED - > > DETECTED > > > > > DIFFERENT 1 CHECKSUMS !!! > > > > > [ 184.733001] [p_lkrg] ALERT !!! _STEXT MEMORY BLOCK HASH IS > > DIFFERENT - > > > > > it is [0xf670e7f89c8e9175] and should be [0x853fd9c99ce7506e] !!! > > > > > [ 184.737362] [p_lkrg] ALERT !!! SYSTEM HAS BEEN COMPROMISED - > > DETECTED > > > > > DIFFERENT 1 CHECKSUMS !!! > > > > > [ 200.093039] [p_lkrg] ALERT !!! _STEXT MEMORY BLOCK HASH IS > > DIFFERENT - > > > > > it is [0xf670e7f89c8e9175] and should be [0x853fd9c99ce7506e] !!! > > > > > [ 200.097373] [p_lkrg] ALERT !!! SYSTEM HAS BEEN COMPROMISED - > > DETECTED > > > > > DIFFERENT 1 CHECKSUMS !!! > > > > > [ 215.453739] [p_lkrg] ALERT !!! _STEXT MEMORY BLOCK HASH IS > > DIFFERENT - > > > > > it is [0xf670e7f89c8e9175] and should be [0x853fd9c99ce7506e] !!! > > > > > [ 215.458065] [p_lkrg] ALERT !!! SYSTEM HAS BEEN COMPROMISED - > > DETECTED > > > > > DIFFERENT 1 CHECKSUMS !!! > > > > > [ 230.809842] [p_lkrg] ALERT !!! _STEXT MEMORY BLOCK HASH IS > > DIFFERENT - > > > > > it is [0xf670e7f89c8e9175] and should be [0x853fd9c99ce7506e] !!! > > > > > [ 230.813139] [p_lkrg] ALERT !!! SYSTEM HAS BEEN COMPROMISED - > > DETECTED > > > > > DIFFERENT 1 CHECKSUMS !!! > > > > > [ 246.174271] [p_lkrg] ALERT !!! _STEXT MEMORY BLOCK HASH IS > > DIFFERENT - > > > > > it is [0xf670e7f89c8e9175] and should be [0x853fd9c99ce7506e] !!! > > > > > [ 246.178591] [p_lkrg] ALERT !!! SYSTEM HAS BEEN COMPROMISED - > > DETECTED > > > > > DIFFERENT 1 CHECKSUMS !!! > > > > > [ 261.534753] [p_lkrg] ALERT !!! _STEXT MEMORY BLOCK HASH IS > > DIFFERENT - > > > > > it is [0xf670e7f89c8e9175] and should be [0x853fd9c99ce7506e] !!! > > > > > [ 261.539121] [p_lkrg] ALERT !!! SYSTEM HAS BEEN COMPROMISED - > > DETECTED > > > > > DIFFERENT 1 CHECKSUMS !!! > > > > > [ 276.895308] [p_lkrg] ALERT !!! _STEXT MEMORY BLOCK HASH IS > > DIFFERENT - > > > > > it is [0xf670e7f89c8e9175] and should be [0x853fd9c99ce7506e] !!! > > > > > [ 276.899637] [p_lkrg] ALERT !!! SYSTEM HAS BEEN COMPROMISED - > > DETECTED > > > > > DIFFERENT 1 CHECKSUMS !!! > > > > > [ 292.256060] [p_lkrg] ALERT !!! _STEXT MEMORY BLOCK HASH IS > > DIFFERENT - > > > > > it is [0xf670e7f89c8e9175] and should be [0x853fd9c99ce7506e] !!! > > > > > [ 292.260376] [p_lkrg] ALERT !!! SYSTEM HAS BEEN COMPROMISED - > > DETECTED > > > > > DIFFERENT 1 CHECKSUMS !!! > > > > > [ 307.616310] [p_lkrg] ALERT !!! _STEXT MEMORY BLOCK HASH IS > > DIFFERENT - > > > > > it is [0xf670e7f89c8e9175] and should be [0x853fd9c99ce7506e] !!! > > > > > [ 307.620630] [p_lkrg] ALERT !!! SYSTEM HAS BEEN COMPROMISED - > > DETECTED > > > > > DIFFERENT 1 CHECKSUMS !!! > > > > > [ 322.976587] [p_lkrg] ALERT !!! _STEXT MEMORY BLOCK HASH IS > > DIFFERENT - > > > > > it is [0xf670e7f89c8e9175] and should be [0x853fd9c99ce7506e] !!! > > > > > [ 322.980904] [p_lkrg] ALERT !!! SYSTEM HAS BEEN COMPROMISED - > > DETECTED > > > > > DIFFERENT 1 CHECKSUMS !!! > > > > > [ 338.337086] [p_lkrg] ALERT !!! _STEXT MEMORY BLOCK HASH IS > > DIFFERENT - > > > > > it is [0xf670e7f89c8e9175] and should be [0x853fd9c99ce7506e] !!! > > > > > [ 338.341404] [p_lkrg] ALERT !!! SYSTEM HAS BEEN COMPROMISED - > > DETECTED > > > > > DIFFERENT 1 CHECKSUMS !!! > > > > > [ 344.481200] [p_lkrg] ALERT !!! _STEXT MEMORY BLOCK HASH IS > > DIFFERENT - > > > > > it is [0xf670e7f89c8e9175] and should be [0x853fd9c99ce7506e] !!! > > > > > [ 344.485567] [p_lkrg] ALERT !!! SYSTEM HAS BEEN COMPROMISED - > > DETECTED > > > > > DIFFERENT 1 CHECKSUMS !!! > > > > > [ 353.697625] [p_lkrg] ALERT !!! _STEXT MEMORY BLOCK HASH IS > > DIFFERENT - > > > > > it is [0xf670e7f89c8e9175] and should be [0x853fd9c99ce7506e] !!! > > > > > [ 353.701967] [p_lkrg] ALERT !!! SYSTEM HAS BEEN COMPROMISED - > > DETECTED > > > > > DIFFERENT 1 CHECKSUMS !!! > > > > > [ 369.057955] [p_lkrg] ALERT !!! _STEXT MEMORY BLOCK HASH IS > > DIFFERENT - > > > > > it is [0xf670e7f89c8e9175] and should be [0x853fd9c99ce7506e] !!! > > > > > [ 369.062276] [p_lkrg] ALERT !!! SYSTEM HAS BEEN COMPROMISED - > > DETECTED > > > > > DIFFERENT 1 CHECKSUMS !!! > > > > > [ 369.079009] [p_lkrg] ALERT !!! _STEXT MEMORY BLOCK HASH IS > > DIFFERENT - > > > > > it is [0xf670e7f89c8e9175] and should be [0x853fd9c99ce7506e] !!! > > > > > [ 369.083003] [p_lkrg] ALERT !!! SYSTEM HAS BEEN COMPROMISED - > > DETECTED > > > > > DIFFERENT 1 CHECKSUMS !!! > > > > > [root@...039183 ~]# > > > > > > > > > > > > > Someone can help ? > > > > > > > > Thanks ! > > > > > > -- > > > pi3 (pi3ki31ny) - pi3 (at) itsec pl > > > http://pi3.com.pl > > > > > > > -- > > pi3 (pi3ki31ny) - pi3 (at) itsec pl > > http://pi3.com.pl > > > > -- pi3 (pi3ki31ny) - pi3 (at) itsec pl http://pi3.com.pl
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