Avatar billede mortenbock Nybegynder
27. juni 2004 - 15:38 Der er 7 kommentarer og
2 løsninger

Angreb på port 445?

Hej med jer.

Jeg bliver løbet på dørene af et eller andet der bliver ved med at gå på port 445. Er det et angreb eller hvad sker der?

Min zonealarm log ser således ud (Har redigeret lidt af det væk fra da jeg køret en sikkerhedstest...):

ZoneAlarm Logging Client v5.0.590.043
Windows XP-5.1.2600-Service Pack 1-SP
type,date,time,source,destination,transport (security)
type,date,time,virus name,file name,mode,e-mail id (antivirus)
type,date,time,source,destination,action,service (IM security)
FWROUTE,2004/06/27,13:06:08 +2:00 GMT,192.168.1.3:1900,192.168.1.20:1664,UDP
FWROUTE,2004/06/27,13:06:08 +2:00 GMT,192.168.1.3:1900,192.168.1.20:1667,UDP
PE,2004/06/27,14:40:10 +2:00 GMT,Adobe Reader 6.0,193.162.153.164:53,N/A
FWIN,2004/06/27,14:53:24 +2:00 GMT,4.29.123.178:2072,80.164.45.128:445,TCP (flags:S)
FWIN,2004/06/27,14:53:44 +2:00 GMT,80.164.92.17:1150,80.164.45.128:445,TCP (flags:S)
FWIN,2004/06/27,14:53:56 +2:00 GMT,80.164.24.15:1607,80.164.45.128:445,TCP (flags:S)
FWIN,2004/06/27,14:54:08 +2:00 GMT,80.164.119.136:3551,80.164.45.128:445,TCP (flags:S)
FWIN,2004/06/27,14:54:10 +2:00 GMT,83.31.251.23:4993,80.164.45.128:445,TCP (flags:S)
FWIN,2004/06/27,14:54:18 +2:00 GMT,207.144.84.101:4661,80.164.45.128:445,TCP (flags:S)
FWIN,2004/06/27,14:55:06 +2:00 GMT,80.164.45.36:4515,80.164.45.128:445,TCP (flags:S)
FWIN,2004/06/27,14:55:10 +2:00 GMT,80.164.66.23:0,80.164.45.128:0,ICMP (type:8/subtype:0)
FWIN,2004/06/27,14:55:18 +2:00 GMT,217.5.42.192:2058,80.164.45.128:445,TCP (flags:S)
FWIN,2004/06/27,14:55:26 +2:00 GMT,4.26.252.14:4564,80.164.45.128:445,TCP (flags:S)
FWIN,2004/06/27,14:55:40 +2:00 GMT,80.164.119.136:2998,80.164.45.128:445,TCP (flags:S)
FWIN,2004/06/27,14:55:44 +2:00 GMT,211.93.14.46:1045,80.164.45.128:445,TCP (flags:S)
FWIN,2004/06/27,14:55:44 +2:00 GMT,80.164.67.87:1500,80.164.45.128:445,TCP (flags:S)
FWIN,2004/06/27,14:55:48 +2:00 GMT,219.125.181.140:4690,80.164.45.128:445,TCP (flags:S)
FWIN,2004/06/27,14:56:16 +2:00 GMT,80.164.44.115:2115,80.164.45.128:445,TCP (flags:S)
FWIN,2004/06/27,14:56:30 +2:00 GMT,80.164.57.160:0,80.164.45.128:0,ICMP (type:8/subtype:0)
FWIN,2004/06/27,14:56:42 +2:00 GMT,61.146.50.55:3591,80.164.45.128:445,TCP (flags:S)
FWIN,2004/06/27,14:56:50 +2:00 GMT,24.108.222.18:4120,80.164.45.128:445,TCP (flags:S)
FWIN,2004/06/27,14:59:32 +2:00 GMT,80.164.111.222:4617,80.164.45.128:445,TCP (flags:S)
FWIN,2004/06/27,14:59:32 +2:00 GMT,218.94.195.20:4547,80.164.45.128:445,TCP (flags:S)
FWIN,2004/06/27,14:59:32 +2:00 GMT,218.91.64.65:1255,80.164.45.128:5554,TCP (flags:S)
FWIN,2004/06/27,14:59:32 +2:00 GMT,218.91.64.65:1719,80.164.45.128:9898,TCP (flags:S)
FWIN,2004/06/27,14:59:32 +2:00 GMT,80.164.45.36:3503,80.164.45.128:445,TCP (flags:S)
FWIN,2004/06/27,14:59:32 +2:00 GMT,80.164.45.36:3505,80.164.45.128:445,TCP (flags:S)
FWIN,2004/06/27,14:59:32 +2:00 GMT,80.164.45.36:3506,80.164.45.128:445,TCP (flags:S)
FWIN,2004/06/27,14:59:32 +2:00 GMT,80.164.45.36:3507,80.164.45.128:445,TCP (flags:S)
FWIN,2004/06/27,14:59:32 +2:00 GMT,80.164.45.36:3534,80.164.45.128:445,TCP (flags:S)
FWIN,2004/06/27,14:59:32 +2:00 GMT,80.164.39.182:2485,80.164.45.128:445,TCP (flags:S)
FWIN,2004/06/27,14:59:32 +2:00 GMT,80.164.45.36:3503,80.164.45.128:445,TCP (flags:S)
FWIN,2004/06/27,14:59:32 +2:00 GMT,80.164.45.36:3505,80.164.45.128:445,TCP (flags:S)
FWIN,2004/06/27,14:59:32 +2:00 GMT,81.203.173.84:3519,80.164.45.128:445,TCP (flags:S)
FWIN,2004/06/27,14:59:32 +2:00 GMT,80.223.241.161:4774,80.164.45.128:445,TCP (flags:S)
FWIN,2004/06/27,14:59:32 +2:00 GMT,66.32.90.108:2846,80.164.45.128:445,TCP (flags:S)
FWIN,2004/06/27,14:59:32 +2:00 GMT,24.136.19.108:1066,80.164.45.128:445,TCP (flags:S)
FWIN,2004/06/27,14:59:36 +2:00 GMT,80.164.26.46:3311,80.164.45.128:445,TCP (flags:S)
FWIN,2004/06/27,14:59:44 +2:00 GMT,81.40.232.236:1981,80.164.45.128:445,TCP (flags:S)
FWIN,2004/06/27,14:59:50 +2:00 GMT,219.146.181.244:38001,80.164.45.128:1025,TCP (flags:S)
FWIN,2004/06/27,15:00:00 +2:00 GMT,80.164.105.82:4160,80.164.45.128:445,TCP (flags:S)
FWIN,2004/06/27,15:00:32 +2:00 GMT,80.164.95.74:3414,80.164.45.128:445,TCP (flags:S)
FWIN,2004/06/27,15:01:04 +2:00 GMT,64.136.76.70:3900,80.164.45.128:445,TCP (flags:S)
FWIN,2004/06/27,15:01:52 +2:00 GMT,62.117.28.1:2358,80.164.45.128:445,TCP (flags:S)
FWIN,2004/06/27,15:01:58 +2:00 GMT,80.135.218.164:1803,80.164.45.128:445,TCP (flags:S)
FWIN,2004/06/27,15:02:18 +2:00 GMT,80.164.4.125:2224,80.164.45.128:139,TCP (flags:S)
FWIN,2004/06/27,15:02:42 +2:00 GMT,61.10.160.60:1076,80.164.45.128:5554,TCP (flags:S)
FWIN,2004/06/27,15:02:44 +2:00 GMT,4.4.155.123:1299,80.164.45.128:445,TCP (flags:S)
FWIN,2004/06/27,15:02:44 +2:00 GMT,61.10.160.60:1990,80.164.45.128:9898,TCP (flags:S)
FWIN,2004/06/27,15:02:50 +2:00 GMT,80.164.104.134:4912,80.164.45.128:445,TCP (flags:S)
FWIN,2004/06/27,15:03:10 +2:00 GMT,80.164.45.36:4657,80.164.45.128:445,TCP (flags:S)
FWIN,2004/06/27,15:03:20 +2:00 GMT,80.164.91.78:3782,80.164.45.128:445,TCP (flags:S)
FWIN,2004/06/27,15:03:24 +2:00 GMT,80.164.108.48:4085,80.164.45.128:445,TCP (flags:S)
FWIN,2004/06/27,15:03:42 +2:00 GMT,80.164.45.36:3182,80.164.45.128:445,TCP (flags:S)
FWIN,2004/06/27,15:03:46 +2:00 GMT,80.164.95.10:1789,80.164.45.128:445,TCP (flags:S)
FWIN,2004/06/27,15:04:38 +2:00 GMT,213.22.40.159:4880,80.164.45.128:445,TCP (flags:S)
FWIN,2004/06/27,15:05:12 +2:00 GMT,61.195.107.95:1480,80.164.45.128:445,TCP (flags:S)
FWIN,2004/06/27,15:05:16 +2:00 GMT,68.144.175.22:4658,80.164.45.128:445,TCP (flags:S)
FWIN,2004/06/27,15:05:24 +2:00 GMT,83.29.69.170:1520,80.164.45.128:445,TCP (flags:S)
FWIN,2004/06/27,15:05:34 +2:00 GMT,80.164.45.185:1636,80.164.45.128:445,TCP (flags:S)
FWIN,2004/06/27,15:07:00 +2:00 GMT,81.224.106.64:3895,80.164.45.128:445,TCP (flags:S)
FWIN,2004/06/27,15:08:12 +2:00 GMT,68.148.163.67:4637,80.164.45.128:445,TCP (flags:S)
FWIN,2004/06/27,15:08:56 +2:00 GMT,200.171.115.108:4197,80.164.45.128:445,TCP (flags:S)
FWIN,2004/06/27,15:09:18 +2:00 GMT,80.164.0.125:1444,80.164.45.128:445,TCP (flags:S)
FWIN,2004/06/27,15:09:26 +2:00 GMT,80.164.63.139:1656,80.164.45.128:1027,UDP
FWIN,2004/06/27,15:09:38 +2:00 GMT,80.164.56.47:3648,80.164.45.128:445,TCP (flags:S)
FWIN,2004/06/27,15:09:44 +2:00 GMT,67.140.140.166:4144,80.164.45.128:445,TCP (flags:S)
FWIN,2004/06/27,15:09:46 +2:00 GMT,80.164.85.17:1725,80.164.45.128:445,TCP (flags:S)
FWIN,2004/06/27,15:09:50 +2:00 GMT,80.164.24.15:1482,80.164.45.128:445,TCP (flags:S)
FWIN,2004/06/27,15:10:38 +2:00 GMT,217.162.216.75:1276,80.164.45.128:445,TCP (flags:S)
FWIN,2004/06/27,15:11:32 +2:00 GMT,61.64.246.251:3137,80.164.45.128:445,TCP (flags:S)
FWIN,2004/06/27,15:11:56 +2:00 GMT,4.41.215.223:3558,80.164.45.128:445,TCP (flags:S)
FWIN,2004/06/27,15:12:14 +2:00 GMT,219.84.23.194:4827,80.164.45.128:445,TCP (flags:S)
FWIN,2004/06/27,15:12:32 +2:00 GMT,80.55.122.170:4691,80.164.45.128:445,TCP (flags:S)
FWIN,2004/06/27,15:12:36 +2:00 GMT,80.164.67.87:1687,80.164.45.128:445,TCP (flags:S)
FWIN,2004/06/27,15:13:10 +2:00 GMT,221.194.103.156:2082,80.164.45.128:9898,TCP (flags:S)
FWIN,2004/06/27,15:13:22 +2:00 GMT,61.43.202.100:1422,80.164.45.128:445,TCP (flags:S)
FWIN,2004/06/27,15:13:22 +2:00 GMT,216.233.214.79:4956,80.164.45.128:445,TCP (flags:S)
FWIN,2004/06/27,15:14:28 +2:00 GMT,80.32.30.57:0,80.164.45.128:0,ICMP (type:8/subtype:0)
FWIN,2004/06/27,15:14:50 +2:00 GMT,80.164.101.17:4342,80.164.45.128:445,TCP (flags:S)
FWIN,2004/06/27,15:15:08 +2:00 GMT,63.156.8.3:3464,80.164.45.128:445,TCP (flags:S)
FWIN,2004/06/27,15:15:48 +2:00 GMT,80.164.27.254:2536,80.164.45.128:445,TCP (flags:S)
FWIN,2004/06/27,15:15:54 +2:00 GMT,80.164.127.128:2154,80.164.45.128:445,TCP (flags:S)
FWIN,2004/06/27,15:15:56 +2:00 GMT,61.229.39.174:3321,80.164.45.128:445,TCP (flags:S)
FWIN,2004/06/27,15:16:02 +2:00 GMT,80.164.119.49:3829,80.164.45.128:445,TCP (flags:S)
FWIN,2004/06/27,15:16:26 +2:00 GMT,218.13.38.57:4812,80.164.45.128:445,TCP (flags:S)
FWIN,2004/06/27,15:16:36 +2:00 GMT,219.130.45.2:10469,80.164.45.128:137,UDP
FWIN,2004/06/27,15:17:00 +2:00 GMT,80.164.191.14:1025,80.164.45.128:137,UDP
FWIN,2004/06/27,15:17:06 +2:00 GMT,213.89.52.146:1235,80.164.45.128:445,TCP (flags:S)
FWIN,2004/06/27,15:17:12 +2:00 GMT,218.19.209.156:25087,80.164.45.128:445,TCP (flags:S)
FWIN,2004/06/27,15:17:24 +2:00 GMT,222.144.238.24:1927,80.164.45.128:445,TCP (flags:S)
FWIN,2004/06/27,15:17:30 +2:00 GMT,217.129.73.34:3687,80.164.45.128:445,TCP (flags:S)
FWIN,2004/06/27,15:17:42 +2:00 GMT,154.20.18.140:4928,80.164.45.128:445,TCP (flags:S)
FWIN,2004/06/27,15:17:46 +2:00 GMT,80.164.87.23:1077,80.164.45.128:445,TCP (flags:S)
FWIN,2004/06/27,15:17:52 +2:00 GMT,203.221.126.60:3260,80.164.45.128:445,TCP (flags:S)
FWIN,2004/06/27,15:18:10 +2:00 GMT,195.94.2.82:4393,80.164.45.128:445,TCP (flags:S)
FWIN,2004/06/27,15:18:56 +2:00 GMT,80.164.119.89:1282,80.164.45.128:2745,TCP (flags:S)
FWIN,2004/06/27,15:18:56 +2:00 GMT,80.164.119.89:2653,80.164.45.128:1025,TCP (flags:S)
FWIN,2004/06/27,15:18:56 +2:00 GMT,80.164.119.89:2658,80.164.45.128:445,TCP (flags:S)
FWIN,2004/06/27,15:19:08 +2:00 GMT,24.83.43.7:2420,80.164.45.128:445,TCP (flags:S)
FWIN,2004/06/27,15:19:42 +2:00 GMT,69.88.195.154:4168,80.164.45.128:445,TCP (flags:S)
FWIN,2004/06/27,15:20:40 +2:00 GMT,80.164.45.36:3121,80.164.45.128:445,TCP (flags:S)
FWIN,2004/06/27,15:20:42 +2:00 GMT,211.239.12.135:1378,80.164.45.128:445,TCP (flags:S)
FWIN,2004/06/27,15:21:00 +2:00 GMT,198.53.39.185:4026,80.164.45.128:445,TCP (flags:S)
FWIN,2004/06/27,15:21:10 +2:00 GMT,80.164.45.36:3306,80.164.45.128:445,TCP (flags:S)
FWIN,2004/06/27,15:21:20 +2:00 GMT,216.15.108.185:4707,80.164.45.128:445,TCP (flags:S)
FWIN,2004/06/27,15:21:22 +2:00 GMT,80.73.68.212:0,80.164.45.128:0,ICMP (type:8/subtype:0)
FWIN,2004/06/27,15:21:30 +2:00 GMT,80.164.64.4:2859,80.164.45.128:445,TCP (flags:S)
FWIN,2004/06/27,15:22:06 +2:00 GMT,81.230.12.213:4197,80.164.45.128:445,TCP (flags:S)
FWIN,2004/06/27,15:23:34 +2:00 GMT,213.250.160.40:4589,80.164.45.128:445,TCP (flags:S)
FWIN,2004/06/27,15:23:48 +2:00 GMT,80.164.0.125:4644,80.164.45.128:445,TCP (flags:S)
FWIN,2004/06/27,15:23:58 +2:00 GMT,218.109.171.118:3104,80.164.45.128:445,TCP (flags:S)
FWIN,2004/06/27,15:24:06 +2:00 GMT,218.167.208.83:4410,80.164.45.128:445,TCP (flags:S)
FWIN,2004/06/27,15:24:40 +2:00 GMT,219.145.14.165:4373,80.164.45.128:445,TCP (flags:S)
FWIN,2004/06/27,15:25:08 +2:00 GMT,80.164.127.128:4004,80.164.45.128:445,TCP (flags:S)
FWIN,2004/06/27,15:25:10 +2:00 GMT,80.164.77.237:2960,80.164.45.128:445,TCP (flags:S)
FWIN,2004/06/27,15:25:10 +2:00 GMT,83.28.19.223:1041,80.164.45.128:445,TCP (flags:S)
FWIN,2004/06/27,15:25:10 +2:00 GMT,83.31.251.23:4736,80.164.45.128:445,TCP (flags:S)
FWIN,2004/06/27,15:25:16 +2:00 GMT,80.164.119.136:2277,80.164.45.128:445,TCP (flags:S)
FWIN,2004/06/27,15:25:24 +2:00 GMT,81.60.62.201:4990,80.164.45.128:445,TCP (flags:S)
FWIN,2004/06/27,15:26:16 +2:00 GMT,80.164.9.227:3134,80.164.45.128:445,TCP (flags:S)
FWIN,2004/06/27,15:26:40 +2:00 GMT,210.182.148.252:3728,80.164.45.128:445,TCP (flags:S)
FWIN,2004/06/27,15:27:36 +2:00 GMT,80.164.73.195:4052,80.164.45.128:445,TCP (flags:S)
FWIN,2004/06/27,15:27:38 +2:00 GMT,207.33.111.37:47068,80.164.45.128:137,UDP
FWIN,2004/06/27,15:27:48 +2:00 GMT,207.33.111.37:34957,80.164.45.128:113,TCP (flags:S)
FWIN,2004/06/27,15:27:54 +2:00 GMT,207.33.111.37:34960,80.164.45.128:79,TCP (flags:S)
FWIN,2004/06/27,15:27:58 +2:00 GMT,207.33.111.37:34963,80.164.45.128:23,TCP (flags:S)
FWIN,2004/06/27,15:28:04 +2:00 GMT,207.33.111.37:34966,80.164.45.128:22,TCP (flags:S)
FWIN,2004/06/27,15:28:08 +2:00 GMT,80.164.30.161:3134,80.164.45.128:445,TCP (flags:S)
FWIN,2004/06/27,15:28:08 +2:00 GMT,207.33.111.37:34968,80.164.45.128:21,TCP (flags:S)
FWIN,2004/06/27,15:28:36 +2:00 GMT,80.164.95.10:3669,80.164.45.128:445,TCP (flags:S)
FWIN,2004/06/27,15:28:42 +2:00 GMT,80.164.85.17:0,80.164.45.128:0,ICMP (type:8/subtype:0)
FWIN,2004/06/27,15:28:46 +2:00 GMT,82.50.77.189:4827,80.164.45.128:445,TCP (flags:S)
FWIN,2004/06/27,15:30:06 +2:00 GMT,213.154.115.136:4102,80.164.45.128:139,TCP (flags:S)
FWIN,2004/06/27,15:30:28 +2:00 GMT,62.234.85.24:2334,80.164.45.128:445,TCP (flags:S)
FWIN,2004/06/27,15:30:34 +2:00 GMT,80.164.97.189:4986,80.164.45.128:445,TCP (flags:S)
FWIN,2004/06/27,15:30:56 +2:00 GMT,24.215.119.218:4852,80.164.45.128:445,TCP (flags:S)
FWIN,2004/06/27,15:34:38 +2:00 GMT,219.164.106.58:4611,80.164.45.128:445,TCP (flags:S)
FWIN,2004/06/27,15:34:40 +2:00 GMT,218.94.74.82:4803,80.164.45.128:445,TCP (flags:S)
FWIN,2004/06/27,15:34:48 +2:00 GMT,80.185.152.4:1204,80.164.45.128:445,TCP (flags:S)
FWIN,2004/06/27,15:34:58 +2:00 GMT,80.164.45.36:4873,80.164.45.128:445,TCP (flags:S)
FWIN,2004/06/27,15:35:10 +2:00 GMT,221.229.242.234:1148,80.164.45.128:445,TCP (flags:S)
FWIN,2004/06/27,15:35:22 +2:00 GMT,80.164.31.84:3119,80.164.45.128:445,TCP (flags:S)
FWIN,2004/06/27,15:35:30 +2:00 GMT,4.46.12.32:3837,80.164.45.128:445,TCP (flags:S)
FWIN,2004/06/27,15:35:30 +2:00 GMT,80.164.89.69:4845,80.164.45.128:445,TCP (flags:S)
FWIN,2004/06/27,15:35:36 +2:00 GMT,210.10.182.6:4023,80.164.45.128:445,TCP (flags:S)
Avatar billede iknowstuff Nybegynder
27. juni 2004 - 15:46 #1
Det er nok en orm. Sasser er bl.a. kendt for at angribe på tcp/445
Avatar billede mortenbock Nybegynder
27. juni 2004 - 15:50 #2
ok. Er der noget at gøre ved det? Jeg har lige i øjeblikket koblet mig selv direkte i ADSL modemet, men normalt kører vi 4 personer gennem en router. Og den har det med at gå i knæ ret ofte, muligvis pga. disse "angreb"?
Avatar billede bufferzone Praktikant
27. juni 2004 - 16:06 #3
Det er din netbios porte og  sync flagene sat. Deteret forsøg på at tilkoble sig på dine delte ressourcer. Din firewall blokkere det og det skal den også.

Mens dette angreb står på (orm eller hacker værktøj) så vil jeg anbefale at du undlader at dele ressourcer over internettet
Avatar billede bufferzone Praktikant
27. juni 2004 - 16:09 #4
Jeg har selv enkelte scanninger på port 139, men de andre er ikke ramt endnu.

Hvis du tidligere har haft uddelt ressourcer, kan det også være et netværksdrev fra en ven der stadig står og forsøger at oprette forbindelsen
Avatar billede mortenbock Nybegynder
27. juni 2004 - 16:28 #5
bufferzone> Jeg bliver stadig ramt på port 445, selvom jeg slet ikke er koblet til andre PC'ere, så det kommer helt sikkert udefra.

Er der ikke andet at gøre end at vente? øv...
Avatar billede iknowstuff Nybegynder
27. juni 2004 - 16:30 #6
Det bedste du kan gøre, gør du allerede: nemlig at have en firewall. At du ikke så det før, er fordi routeren tog mod slagene.
Avatar billede mortenbock Nybegynder
27. juni 2004 - 16:31 #7
iknowstuff> Routeren blev også ramt ret hårdt, men den loggede det til at være port 48385. Og det er muligvis det der får den til at være ustabil.
Avatar billede bufferzone Praktikant
27. juni 2004 - 17:17 #8
Jeg har set flere angreb po port 48385, men den er ikke velbeskrevet på de steder der dokumentere den slags. Det er ikke en kendt trojener eller et kendt angreb.

Der er slet ingen tvivl om at det kommer ude fra. Det er en af dine netbios porte det går på og da kun sync flaget er sat, er det et forsøg på at etablere en forbindelse. Det er derfor jeg siger at det kan være en tidligere forbindelse til et delt drev der spøger.

Du har sikkert din firewall indstillet til at droppe alle afviste pakker, og det er også normalt det fornuftigste, men hvis der er tale om legitim trafik eller trafik fra en fejlkonfigureret maskine/router, kan det nogle gange være bedre at afvise pakkerne i stedet for at dropp (forskellen ligger i at en avisning afsender en ACK og Reset pakke der fortæller den fejlkonfigurerede maskine at denne forbindelse ikke er åben, hvorfor disse forbindelsesforsøg standses
Avatar billede iknowstuff Nybegynder
27. juni 2004 - 17:24 #9
buffer>hvis du kigger på loggen, stammer trafikken fra mange forskellige kilder. så jeg tror ikke det stammer fra smb-trafik. og som sagt, sasser angriber på 445..
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