https://uts.sirius.online/smt-portal/files/1da85c7...

Got the PCAP link! I can’t directly access or download files from external URLs here. If you upload the .pcap file in this chat, I’ll analyze it right away.

If you’d rather not upload the whole capture, you can also run a few quick commands locally and share the outputs; I can interpret them for you:

Quick triage with capinfos / tshark

bash
# Basic metadata
capinfos sample.pcap

# Traffic volume over time (1s buckets)
tshark -r sample.pcap -q -z io,stat,1

# Top conversations (IP pairs)
tshark -r sample.pcap -q -z conv,ip

# Top talkers (quick + dirty)
tshark -r sample.pcap -T fields -e ip.src | sort | uniq -c | sort -nr | head
tshark -r sample.pcap -T fields -e ip.dst | sort | uniq -c | sort -nr | head

# DNS queries
tshark -r sample.pcap -Y "dns && dns.flags.response==0" \
  -T fields -e frame.time -e ip.src -e dns.qry.name | head -n 200

# HTTP hosts/URIs (cleartext only)
tshark -r sample.pcap -Y http \
  -T fields -e frame.time -e ip.src -e http.host -e http.request.uri -e http.user_agent | head -n 200

# TLS SNI + JA3 (if supported by your tshark)
tshark -r sample.pcap -Y "ssl.handshake.type==1" \
  -T fields -e frame.time -e ip.src -e tls.handshake.extensions_server_name -e tls.handshake.ja3

# Possible port scans (SYNs without ACK)
tshark -r sample.pcap -Y "tcp.flags.syn==1 && tcp.flags.ack==0" \
  -T fields -e frame.time -e ip.src -e tcp.dstport | head -n 200

# Export HTTP objects (if needed)
tshark -r sample.pcap --export-objects "http,./http_objs"

Or use Zeek for rich logs

bash
zeek -r sample.pcap
# Then share: conn.log, dns.log, http.log, ssl.log, files.log (if present)

If you upload the PCAP here, I’ll deliver:

• Overall stats (duration, packets/bytes, peaks)
• Top talkers, services, and flows
• DNS/HTTP/TLS highlights (SNI, JA3), suspicious domains
• Indicators of compromise patterns (beacons, scans, exfil hints)
• Cleartext creds/leaks (if present)
• A tidy CSV/Excel summary you can hand to colleagues

Your call: upload the file, or paste a few of the command outputs above and I’ll start digging in.