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threat actor · RU

Void Blizzard

also tracked as ta488 4, laundry bear 3

4 stories · 4 in the wild · July 24, 2026 – July 30, 2026

evidence: 4 observed

how they got in

  • phishing email 2 · Jul 30

sectors

  • government 3 · Jul 30
  • defense 2 · Jul 30
  • finance 1 · Jul 30
  • telecom 1 · Jul 30

geography

  • russia 4 · Jul 30
  • europe 1 · Jul 30
  • united states 1 · Jul 30

malware and tools

  • ulej 1 · Jul 24

techniques

  • xss 2 · Jul 30
  • half click exploit 1 · Jul 30
  • persistent mailbox access 1 · Jul 30
  • credential theft 1 · Jul 26
  • cross site scripting 1 · Jul 25
  • credential access 1 · Jul 24
  • exfiltration 1 · Jul 24
  • initial access 1 · Jul 24
  • zero click 1 · Jul 24

attack phases seen

  • Initial access 4 · Jul 30
  • Collection 2 · Jul 26
  • Persistence 1 · Jul 30
  • Credential access 1 · Jul 26
  • Execution 1 · Jul 24
  • Exfiltration 1 · Jul 24

what we reported, newest first, grouped by story

Jul 24 – July 30, 2026 · 4 reports

  • TA488 (Laundry Bear / Void Blizzard) is exploiting an Outlook Web Access XSS zero-day (CVE-2026-42897) for persistent mailbox access (earlier coverage). Proofpoint says the Russia-aligned actor began the campaign on July 22, targeting US and European government, telecom, financial, hospitality and aerospace orgs, and is doubling down on "half-click" exploits where merely opening the email triggers compromise. Proofpoint, The Record · Jul 30 · observed · via phishing email · as ta488, laundry bear · Threat Activity
  • Russia's Laundry Bear (Void Blizzard / TA488) campaign against Zimbra got a technical anatomy from Unit 42, tracking it as CL-STA-1114: the zero-click XSS payload (CVE-2025-66376) grabs the last 90 days of mail, the org's full email directory, browser-saved passwords, and 2FA recovery codes the moment a message loads, per The Hacker News and BleepingComputer (earlier coverage). · Jul 26 · observed · as laundry bear, ta488 · Threat Activity
  • Russian Zimbra campaign broadens across webmail platforms. Proofpoint expands the picture on the state-linked actor (TA488 / Void Blizzard / Laundry Bear), tying the "half-click" Zimbra XSS (CVE-2025-66376) to a wider Operation RoundPress push that also weaponized zero-days in mDaemon (CVE-2025-3929) and SOGo (CVE-2026-8496) (earlier coverage). Proofpoint. · Jul 25 · observed · as ta488 · Threat Activity
  • A US/UK-led coalition exposed a Russian state campaign exploiting Zimbra zero-click flaw CVE-2025-66376 against NATO, Ukraine, CIS and African targets. The actor — tracked as Laundry Bear / Void Blizzard / TA488 (CL-STA-1114) — plants malicious JavaScript that fires the instant a webmail message is previewed, no click required; its Ulej tool then exfiltrates the last 90 days of email, org directories, saved browser passwords, and 2FA recovery codes. CISA advisory, NCSC-UK, Unit 42, The Record. · Jul 24 · observed · via phishing email · as laundry bear, ta488 · Threat Activity