SideWinder
aka Rattlesnake, T-APT-04, Razor Tiger
A spy group suspected of links to India that targets governments, militaries, ports and shipping from South Asia to the Middle East and Africa. It sends many emails abusing an old Office flaw.
- Alert level
- 2/ 5
- Reports & advisories (90 days)
- 0
- Known exploited CVEs
- 1
- Personal data leaked (disclosed)
- None confirmed
Attribution
- Suspected Indian threat actor group — MITRE ATT&CK
Exploited vulnerabilities and targeted products
If you run any of these products, first make sure they are updated to a fixed version.
How they attack
Entry
Targeted phishing emails
Like a letter that seems to come from a colleague, with an envelope that springs a trap when opened.
Entry
Old Office flaws
Like trying doors that still have the old lock everyone was told to replace years ago.
Goal
Long-term spying
Like leaving a tiny bug in the meeting room and listening in for months.
Sources
Attributions are quoted as assessed by governments and security vendors. VulnPulse does not make attributions itself.
Leak counts only add up figures disclosed by the affected companies or authorities, never the attackers' own claims. We do not list victim names or link to leak sites.
The alert level is calculated automatically from reports and advisories in the last 90 days, known exploited vulnerabilities, and whether the group has targeted Japan.
Updated 2026-10-23 · daily