The headers are real.. it is most likely from bitmine.
Someone managed to hack their mail server.
I wouldn't say that the *e-mails* containing the virus were from Bitmine. I would rather say that they were from some T-Mobile USA customer through SMTP.com But I would definitely say that the *data* (i.e. addresses, possibly more) were leaked from Bitmine servers in some way.
By the way, Bitmine support has just acknowledged the virus by e-mail response to me ("we are investigating")
Received: from [172.56.17.187] ([172.56.17.187:15292] helo=172.56.39.143)
by sl-mta06.smtp.com (envelope-from)
(ecelerity 3.5.5.39309 r(Platform:3.5.5.0)) with ESMTPA
id 2F/2C-09833-339CCE35; Thu, 14 Aug 2014 14:35:32 +0000
$ whois 172.56.17.187
#
# ARIN WHOIS data and services are subject to the Terms of Use
# available at: https://www.arin.net/whois_tou.html
#
# If you see inaccuracies in the results, please report at
# http://www.arin.net/public/whoisinaccuracy/index.xhtml
#
#
# Query terms are ambiguous. The query is assumed to be:
# "n 172.56.17.187"
#
# Use "?" to get help.
#
#
# The following results may also be obtained via:
# http://whois.arin.net/rest/nets;q=172.56.17.187?showDetails=true&showARIN=false&ext=netref2
#
NetRange: 172.32.0.0 - 172.63.255.255
CIDR: 172.32.0.0/11
OriginAS: AS21928
NetName: TMO9
NetHandle: NET-172-32-0-0-1
Parent: NET-172-0-0-0-0
NetType: Direct Allocation
RegDate: 2012-09-18
Updated: 2012-09-18
Ref: http://whois.arin.net/rest/net/NET-172-32-0-0-1
OrgName: T-Mobile USA, Inc.
OrgId: TMOBI
Address: 12920 SE 38th Street
City: Bellevue
StateProv: WA
PostalCode: 98006
Country: US
RegDate: 2003-01-02
Updated: 2012-07-13
Ref: http://whois.arin.net/rest/org/TMOBI
OrgTechHandle: DNSAD11-ARIN
OrgTechName: DNS Administrators
OrgTechPhone: +1-888-662-4662
OrgTechEmail: [email protected]
OrgTechRef: http://whois.arin.net/rest/poc/DNSAD11-ARIN
OrgAbuseHandle: DNSAD11-ARIN
OrgAbuseName: DNS Administrators
OrgAbusePhone: +1-888-662-4662
OrgAbuseEmail: [email protected]
OrgAbuseRef: http://whois.arin.net/rest/poc/DNSAD11-ARIN
#
# ARIN WHOIS data and services are subject to the Terms of Use
# available at: https://www.arin.net/whois_tou.html
#
# If you see inaccuracies in the results, please report at
# http://www.arin.net/public/whoisinaccuracy/index.xhtml
#
Note: the attack *could* have been mitigated by Bitmine if they had implemented strict SPF DNS records on bitmine.ch
I don't think you can find out who sent this just by looking at the "by sl-mta06.smtp.com" tag.
Some mail servers strip those tags and replace them with their own..