[mdaemon-l] Email account sering di hijack

2018-06-11 Terurut Topik Syafril Hermansyah
On 2018-06-12 07:56, Heryanto (herya...@dima.co.id) wrote:
> Pak Syafril mau bertanya belakangan ini kami sering mengalami
> serangan account hijack dari luar , padahal utk dymanic screening dan
> location sudah kita aktif kan.

Strong password sudah diaktifkan untuk semua user?

> Tue 2018-06-12 04:26:01.178: [756095] *  From: charli@dima.co.id
> 
> Tue 2018-06-12 04:26:01.178: [756095] *  To:
> hbbtkepurpsrd...@quaihuonglashzke.info
> 
> Tue 2018-06-12 04:26:01.178: [756095] *  Message-ID:
> <313035646463.2018611212...@quaihuonglashzke.info>


Perlihatkan sumber/pengirim dari mail spam di smtp-in log.

> Yg ingin saya tanya kan apakah utk hijack detection dan spambot
> detection perlu di enable ? dan bisa di kirimkan settingan utk kedua
> menu ini best practice nya


Ya perlu khususnya untuk account hijack detection, sebagai tindakan
berjaga-jaga kalau ada akun yang terkena hijack.
Untuk start awal gunakan setting standard saja.


http://mdaemon.dutaint.co.id/mdaemon/18.0/index.html?security--hijack_detection.htm



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syafril
---
Syafril Hermansyah
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[mdaemon-l] Email account sering di hijack

2018-06-11 Terurut Topik Heryanto
Dear Pak Syafril,

 

Pak Syafril mau bertanya belakangan ini kami sering mengalami serangan
account hijack dari luar , padahal utk dymanic screening dan location sudah
kita aktif kan.

Yg ingin saya tanya kan apakah utk hijack detection dan spambot detection
perlu di enable ? dan bisa di kirimkan settingan utk kedua menu ini best
practice nya . Terima Kasih.

 

Berikut kami lampirkan log smtp-out :

 

2018-06-12 04:01:31.654: --

Tue 2018-06-12 04:26:01.177: [756095] Session 756095; child 0001

Tue 2018-06-12 04:26:01.177: [756095] Parsing message


Tue 2018-06-12 04:26:01.178: [756095] *  From: charli@dima.co.id

Tue 2018-06-12 04:26:01.178: [756095] *  To:
hbbtkepurpsrd...@quaihuonglashzke.info

Tue 2018-06-12 04:26:01.178: [756095] *  Subject: Tax Return Transcript from
06/12/2018

Tue 2018-06-12 04:26:01.178: [756095] *  Size (bytes): 140054

Tue 2018-06-12 04:26:01.178: [756095] *  Message-ID:
<313035646463.2018611212...@quaihuonglashzke.info>

Tue 2018-06-12 04:26:01.180: [756095] Attempting to send message to smart
host

Tue 2018-06-12 04:26:01.180: [756095] Attempting SMTP connection to
smtp.antispamcloud.com

Tue 2018-06-12 04:26:01.180: [756095] Resolving A record for
smtp.antispamcloud.com (DNS Server: 116.254.101.2)...

Tue 2018-06-12 04:26:01.182: [756095] *  D=smtp.antispamcloud.com TTL=(0)
A=[198.7.58.152]

Tue 2018-06-12 04:26:01.182: [756095] *  D=smtp.antispamcloud.com TTL=(0)
A=[217.20.113.37]

Tue 2018-06-12 04:26:01.182: [756095] *  D=smtp.antispamcloud.com TTL=(0)
A=[5.79.72.138]

Tue 2018-06-12 04:26:01.182: [756095] *  D=smtp.antispamcloud.com TTL=(0)
A=[5.79.72.139]

Tue 2018-06-12 04:26:01.182: [756095] *  D=smtp.antispamcloud.com TTL=(0)
A=[37.48.65.165]

Tue 2018-06-12 04:26:01.182: [756095] *  D=smtp.antispamcloud.com TTL=(0)
A=[46.165.209.5]

Tue 2018-06-12 04:26:01.182: [756095] *  D=smtp.antispamcloud.com TTL=(0)
A=[46.165.217.141]

Tue 2018-06-12 04:26:01.182: [756095] *  D=smtp.antispamcloud.com TTL=(0)
A=[46.165.217.142]

Tue 2018-06-12 04:26:01.182: [756095] *  D=smtp.antispamcloud.com TTL=(0)
A=[69.64.57.56]

Tue 2018-06-12 04:26:01.182: [756095] *  D=smtp.antispamcloud.com TTL=(0)
A=[85.25.237.173]

Tue 2018-06-12 04:26:01.182: [756095] *  D=smtp.antispamcloud.com TTL=(0)
A=[94.75.244.163]

Tue 2018-06-12 04:26:01.182: [756095] *  D=smtp.antispamcloud.com TTL=(0)
A=[138.201.61.135]

Tue 2018-06-12 04:26:01.182: [756095] Randomly picked 94.75.244.163 from
list of possible hosts

Tue 2018-06-12 04:26:01.183: [756095] Attempting SMTP connection to
94.75.244.163:587

Tue 2018-06-12 04:26:01.183: [756095] Waiting for socket connection...

Tue 2018-06-12 04:26:01.368: [756095] *  Connection established
116.254.100.37:57350 --> 94.75.244.163:587

Tue 2018-06-12 04:26:01.368: [756095] Waiting for protocol to start...

Tue 2018-06-12 04:26:01.928: [756095] <-- 220 mx3.antispamcloud.com ESMTP
Exim 135182 Mon, 11 Jun 2018 23:22:16 +0200

Tue 2018-06-12 04:26:01.929: [756095] --> EHLO mail.dima.co.id

Tue 2018-06-12 04:26:02.112: [756095] <-- 250-mx3.antispamcloud.com Hello
edm.ed-dima.com [116.254.100.37]

Tue 2018-06-12 04:26:02.112: [756095] <-- 250-SIZE

Tue 2018-06-12 04:26:02.112: [756095] <-- 250-8BITMIME

Tue 2018-06-12 04:26:02.112: [756095] <-- 250-DSN

Tue 2018-06-12 04:26:02.112: [756095] <-- 250-AUTH PLAIN LOGIN

Tue 2018-06-12 04:26:02.112: [756095] <-- 250-STARTTLS

Tue 2018-06-12 04:26:02.112: [756095] <-- 250 HELP

Tue 2018-06-12 04:26:02.112: [756095] --> STARTTLS

Tue 2018-06-12 04:26:02.305: [756095] <-- 220 TLS go ahead

Tue 2018-06-12 04:26:02.681: [756095] SSL negotiation successful (TLS 1.2,
2048 bit key exchange, 128 bit AES encryption)

Tue 2018-06-12 04:26:02.890: [756095] SSL certificate is valid (matches
smtp.antispamcloud.com and is signed by recognized CA)

Tue 2018-06-12 04:26:02.890: [756095] --> EHLO mail.dima.co.id

Tue 2018-06-12 04:26:03.075: [756095] <-- 250-mx3.antispamcloud.com Hello
edm.ed-dima.com [116.254.100.37]

Tue 2018-06-12 04:26:03.075: [756095] <-- 250-SIZE

Tue 2018-06-12 04:26:03.075: [756095] <-- 250-8BITMIME

Tue 2018-06-12 04:26:03.075: [756095] <-- 250-DSN

Tue 2018-06-12 04:26:03.075: [756095] <-- 250-AUTH PLAIN LOGIN

Tue 2018-06-12 04:26:03.075: [756095] <-- 250 HELP

Tue 2018-06-12 04:26:03.075: [756095] --> AUTH LOGIN

Tue 2018-06-12 04:26:03.258: [756095] <-- 334 VXNlcm5hbWU6

Tue 2018-06-12 04:26:03.258: [756095] --> **

Tue 2018-06-12 04:26:03.442: [756095] <-- 334 UGFzc3dvcmQ6

Tue 2018-06-12 04:26:03.442: [756095] --> **

Tue 2018-06-12 04:26:03.628: [756095] <-- 235 Authentication succeeded

Tue 2018-06-12 04:26:03.628: [756095] --> MAIL From:
SIZE=140054

Tue 2018-06-12 04:26:08.791: [756095] <-- 250 OK

Tue 2018-06-12 04:26:08.791: [756095] --> RCPT
To:

Tue 2018-06-12 04:26:08.984: [756095] <-- 250 Accepted

Tue 2018-06-12 04:26:08.986: [756095] --> DATA

Tue 2018-06-12 04:26:09.169: [756095] <-- 354 Enter message, ending with "."
on a line by itself

Tue 2018-06-12 04:26:09.169: