Re: [clamav-users] Heuristics.Phishing.Email.SpoofedDomain FP

2016-08-16 Thread Kris Deugau
Alex wrote:
> Hi,
> 
> I have a false-positive with Heuristics.Phishing.Email.SpoofedDomain
> for capitaloneemail.com, but can't figure out how to use sigtool to
> determine which actual domain it thinks was spoofed.
> 
> # sigtool --find-sigs Heuristics.Phishing.Email.SpoofedDomain |
> sigtool --decode-sigs
> #
> 
> Why doesn't it display the signature with the above command?
> 
> How do I scan the quarantined message to find out exactly what
> triggered this false positive?

The Heuristics* "signatures" aren't fixed signatures in the signature
files.  This particular one represents link where the visible and
link-target domain are "too different", but only for high-risk domains
(eg banks).  I'm not sure where the list of domains to consider is kept.

To whitelist a specific match hit by this signature chase down the
mismatched domains as per Steve's message, and add a line to local.wdb, eg:

X:\.rbc\.com:www\.rbcroyalbank\.com

or

M:trk.cp20.com:bmo.com

I have yet to figure out why I have to use an X: line for some matches,
and an M: line for others;  I use one or the other depending on which
one I can get to actually work on a case-by-base basis.

-kgd
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Re: [clamav-users] Heuristics.Phishing.Email.SpoofedDomain FP

2016-08-16 Thread Alex
On Tue, Aug 16, 2016 at 12:35 PM, Steve basford
 wrote:
> Try clamscan --debug 2>debug.log and I think that should show you a domain.

Ah yes, thanks. It appears it's marked it because the URLs were too different:

LibClamAV debug: Phishing: looking up in whitelist:
.click.capitaloneemail.com:.mi.capitalone.com; host-only:1
LibClamAV debug: Looking up in regex_list:
click.capitaloneemail.com:mi.capitalone.com/
LibClamAV debug: Lookup result: not in regex list
LibClamAV debug: Phishcheck: Phishing scan result: URLs are way too different

I'm not sure I'm ready to whitelist the rule just yet, however.

Thanks,
Alex
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Re: [clamav-users] Heuristics.Phishing.Email.SpoofedDomain FP

2016-08-16 Thread Steve basford

Try clamscan --debug 2>debug.log and I think that should show you a domain.

Cheers,

Steve
Web: sanesecurity.com
Blog: sanesecurity.blogspot.com
Twitter: @sanesecurity



On 16 August 2016 17:32:31 Alex  wrote:


Hi,

I have a false-positive with Heuristics.Phishing.Email.SpoofedDomain
for capitaloneemail.com, but can't figure out how to use sigtool to
determine which actual domain it thinks was spoofed.

# sigtool --find-sigs Heuristics.Phishing.Email.SpoofedDomain |
sigtool --decode-sigs
#

Why doesn't it display the signature with the above command?

How do I scan the quarantined message to find out exactly what
triggered this false positive?

Thanks,
Alex
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Re: [clamav-users] Heuristics.Phishing.Email.SpoofedDomain FP

2016-08-16 Thread Reindl Harald



Am 16.08.2016 um 18:31 schrieb Alex:

I have a false-positive with Heuristics.Phishing.Email.SpoofedDomain
for capitaloneemail.com, but can't figure out how to use sigtool to
determine which actual domain it thinks was spoofed.

# sigtool --find-sigs Heuristics.Phishing.Email.SpoofedDomain |
sigtool --decode-sigs
#

Why doesn't it display the signature with the above command?

How do I scan the quarantined message to find out exactly what
triggered this false positive?


i disabled them entirely because i still need to face anything else than 
false positives from that rules




signature.asc
Description: OpenPGP digital signature
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[clamav-users] Heuristics.Phishing.Email.SpoofedDomain FP

2016-08-16 Thread Alex
Hi,

I have a false-positive with Heuristics.Phishing.Email.SpoofedDomain
for capitaloneemail.com, but can't figure out how to use sigtool to
determine which actual domain it thinks was spoofed.

# sigtool --find-sigs Heuristics.Phishing.Email.SpoofedDomain |
sigtool --decode-sigs
#

Why doesn't it display the signature with the above command?

How do I scan the quarantined message to find out exactly what
triggered this false positive?

Thanks,
Alex
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[clamav-users] Missing "daily" e-mails

2016-08-16 Thread Al Varnell
You probably already realize that we didn’t receive fifteen messages from the 
clamav-virusdb list for four days (daily - 22070 through daily - 22084) and 
they are not in the archives.


-Al-
-- 
Al Varnell
Mountain View, CA






smime.p7s
Description: S/MIME cryptographic signature
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Re: [clamav-users] Sigtool parsing issues

2016-08-16 Thread Arnaud Jacques / SecuriteInfo.com
Hello Jack,

> Great, thanks. Here is the output with ‘—debug’:
> 
> LibClamAV debug: Initialized 0.99.2 engine
> LibClamAV debug: in cli_ole2_extract()
> LibClamAV debug: OLE2 magic failed!
> LibClamAV debug: Cleaning up phishcheck
> LibClamAV debug: Phishcheck cleaned up
> 
> To note, the document opens fine in Microsoft Word, and oletools has no
> issues dumping out the macros.

Maybe related to 
https://github.com/vrtadmin/clamav-devel/commit/dbd2653d835b5446aed780112d376f5b2596519f

See this in the next version of Clamav.

-- 
Best regards,

Arnaud Jacques
SecuriteInfo.com

Facebook : https://www.facebook.com/pages/SecuriteInfocom/132872523492286
Twitter : @SecuriteInfoCom
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