topic Re: DNS attack? False positive: urussynonumsantonums.com in General Topics

DNS attack? False positive: urussynonumsantonums.com

djdove007 — Fri, 06 Mar 2015 18:10:03 GMT

Hello,

I am new to this realm so please note if I ask alot of questions, you all have the answers. I have a PA device that has been spitting out multiple, multiple, and multiple Threat notices for the above domain: urussynonumsantonums.com.

I have seen some threads where PA updated their threat database to 80,000 new entries. Plus there was an error in one of the most current loads and users were reverting back to the previous AV, Threat, Container DB's to resolve the issue. Is anyone getting the same Threat emailed about 100 times. It is not constant, but when it happens it lasts for about 3 minutes, then goes away. I have scanned my network and all computers and servers for viruses, malware,etc. I have found nothing. Hopefully I am not chasing a ghost here. Below is a snipit from my alert with sensitive information removed.

domain: 1
receive_time: 2015/03/06 12:47:23
serial:
seqno:
actionflags: 0x0
type: THREAT
subtype: spyware
config_ver: 1
time_generated: 2015/03/06 12:47:18
src: 192.168.0.1
dst: 192.5.6.30
natsrc:
natdst: 192.5.6.30
rule: LAN to External
srcuser:
dstuser:
srcloc: 192.168.0.0-192.168.255.255
dstloc: US
app: dns
vsys: vsys1
from: private-
to: public--Out
inbound_if: ethernet1/1
outbound_if: ethernet1/16
logset: log forward
time_received: 2015/03/06 12:47:22
sessionid: 37009
repeatcnt: 1
sport: 37998
dport: 53
natsport: 17914
natdport: 53
flags: 0x400000
proto: udp
action: drop-all-packets
cpadding: 0
threatid: Suspicious DNS Query (generic:urussynonumsantonums.com)(4038556)
category: any
contenttype:
behavior: 0x0300000000000000000000000000000000000000000000000000000000000000
severit! y: medium
direction: client-to-server
misc:

Any help would be appreciated.

Thank you,

Re: DNS attack? False positive: urussynonumsantonums.com

ssharma — Fri, 06 Mar 2015 18:21:04 GMT

A quick check on brightcloud reveals the site to be less than a month old. And since spyware is picking up the url, that means this url might possibly be involved in malicious activity. You need to find why source 192.168.0.1 is trying to resolve the url. Was that done on purpose or some application are trying to resolve it. Most the sites that are relatively new would be up for short time and then vanish after the purpose is fulfilled. That host in question might be compromised as well. Hope this helps.

Re: DNS attack? False positive: urussynonumsantonums.com

hshah — Fri, 06 Mar 2015 19:23:04 GMT

Hi Djdove007,

Please open a TAC ticket for verification.

Virustotal doesn't detect it as virus.

https://www.virustotal.com/en/url/092b2b1e35ab59ff51382169d9efa06969fa1c4b0012963d533d2fba130a769d/analysis/1425669652/

But Bright Cloud think its as malicious. Only TAC can verify this.

URL/IP Lookup | Webroot BrightCloud

Regards,

Hardik Shah