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manu4uFlag for United Arab Emirates asked on

Internal Spam

I have a MS Exchange 2003 environment ... For the SPAM filtering ( Going out / Coming In )  , we are using  Symantec MailSecurity ... and it does a good job so far... My problem now is , users are getting spams, which I believe , is originated from with in our LAN .... I checked the Syamantec MailSecurity Logs, and it hasn't come from Outside for sure ...

We have 1000s of PCs in our organization which are spread in so many different locations ... How can I block / identify the PC which sends these spam messages ...

Below you can see an example of the spam message I got ...

From : Angeline1984@ax.com

To: Myname@mydomain.com

I participate in competition of an hard erotic photo. Please vote me! You must see that!: http://jso-gf.mail15.su


How can I block these spams, it is making huge problems now, because these messages are being sent to Distribution Lists as well ...

Thanks in advance,
Manu

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manu4u

8/22/2022 - Mon
ASKER CERTIFIED SOLUTION
Jaymz_R

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Jaymz_R

Good Free Packetsniffer = Wireshark

If you need any help using these programs, let me know, i'll write mini semi detailed tutorials.
ASKER
manu4u

I found the culprit and problem is fixed, Thank you Jaymz ..
One of the PC was infected by BlackMal virus.

Manu
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