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AS8866 Vivacom Bulgaria EAD

ASN Ended medium

Why this campaign was detected

5 IPs from the same network (Vivacom Bulgaria EAD, AS8866) were active during overlapping time periods. Temporal correlation across a shared autonomous system suggests infrastructure controlled by the same entity.

Primary ASN

AS8866 · Vivacom Bulgaria EAD

Subnet

—

Country

🇧🇬 BG

Cloud Provider

—

Member Count

5 IPs

Below average

Total Events

2442

Below average by volume

Started / Ended

2026-05-31 10:38 — ongoing

Attack Types

ssh:bruteforce ssh:connection ssh:intrusion ssh:malware

MITRE ATT&CK Techniques

Reconnaissance

T1595 T1595.001 T1595.002

Initial Access

T1078

Execution

T1059.004

Credential Access

T1110 T1110.001

Discovery

T1016 T1046 T1082

Command and Control

T1105

Member Actors

IP Address	Behavior	Confidence	Events	Agents	Attack Types	Hostname	Last Seen
77.85.197.6	credential_harvester	50%	427	2	ssh:bruteforcessh:malware	77-85-197-6.ip.btc-net.bg	2026-09-29 06:45	evidence →
46.10.201.91	credential_harvester	42%	1064	1	ssh:bruteforcessh:connectionssh:intrusion	46-10-201-91.ip.btc-net.bg	2026-10-05 13:58	evidence →
46.10.201.90	credential_harvester	41%	987	1	ssh:bruteforcessh:connectionssh:intrusion	46-10-201-90.ip.btc-net.bg	2026-10-02 09:53	evidence →
87.126.145.190	opportunistic_bruter	21%	5	1	ssh:bruteforce	87-126-145-190.ip.btc-net.bg	2026-10-05 10:12	evidence →
79.100.82.3	scanner	12%	4	1	ssh:connection	79-100-82-3.ip.btc-net.bg	2026-09-29 22:23	evidence →

VPN Known VPN or proxy provider

DROP ASN on Spamhaus DROP list

Nx OSINT Corroborated by N external threat feeds