Security Incidents mailing list archives

Re: Dameware scans, worm?


From: Charles Hamby <fixer () gci net>
Date: Thu, 22 Jan 2004 07:52:37 -0900

We've also seen a huge increase in dameware scans, but not all of them have been from source port 220. What we've been seeing is a mix of scans that are 220 some that show up in the 1000 range and still others strictly show up only in the 4000 range For example:

[**] [1:0:0] DameWare Remote Agent Scan. [**]
[Priority: 0] 01/21-09:36:28.664230 12.216.178.193:1415 -> w.x.y.z:6129
TCP TTL:116 TOS:0x0 ID:37387 IpLen:20 DgmLen:48 DF
******S* Seq: 0xBD91B99F  Ack: 0x0  Win: 0x4000  TcpLen: 28
TCP Options (4) => MSS: 1460 NOP NOP SackOK
and

[**] [1:0:0] DameWare Remote Agent Scan. [**]

[Priority: 0] 01/21-23:30:28.845245 66.102.199.99:220 -> w.x.y.z:6129
TCP TTL:112 TOS:0x0 ID:6447 IpLen:20 DgmLen:40
******S* Seq: 0x5EE5  Ack: 0x5EE5  Win: 0x4000  TcpLen: 20

and
[**] [1:0:0] DameWare Remote Agent Scan. [**]
[Priority: 0] 01/22-00:02:47.429139 61.130.20.178:4727 -> w.x.y.z:6129
TCP TTL:109 TOS:0x0 ID:59562 IpLen:20 DgmLen:48 DF
******S* Seq: 0x111BFE3  Ack: 0x0  Win: 0xFAF0  TcpLen: 28
TCP Options (4) => MSS: 1460 NOP NOP SackOK

I think, as you suggest, that these may just represent different tools that are being used. I haven't had a chance to look at the original exploit that was release for this vuln to see what sort of signature it gives. Anyone done that?

-cdh


Keith T. Morgan wrote:

We've seen an increase in scans for dameware (tcp 6129) over the past
four days.  I believe there was an exploit released for dameware, but
I'm unaware of it's behavior.  A colleague first noticed these across
multiple class C networks scanning consecutive IPs, and we have been
seeing the same type of activity.

The interesting part about the scans is that they almost universally
have a source port of 220, which to me indicates either worm activity or
a canned scanner/exploit combo with a hard-coded source-port.

Anyone else seeing an increase in these?

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