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Rewterz Threat Alert – GreenFlash Sundown Exploit Kit Delivered Through Malspam Campaign
July 2, 2019
Rewterz Threat Alert – E-Invoice dropping Danabot Banking Trojan
July 3, 2019

Rewterz Threat Alert – Ratsnif – OceanLotus’s New Network Vermin

July 2, 2019

Severity

High

Analysis Summary

The OceanLotus Group aka APT32 is using a suite of remote access trojans dubbed “Ratsnif” to leverage new network attack capabilities. Researchers have analyzed the Ratsnif trojans, which offer a veritable swiss-army knife of network attack techniques. The trojans, under active development since 2016, combine capabilities like packet sniffing, gateway/device ARP poisoning, DNS poisoning, HTTP injection, and MAC spoofing.

Impact

  • DNS poisoning
  • HTTP injection
  • MAC spoofing

Indicators of Compromise

URLs

http[:]//search[.]webstie[.]net/

Filename

  • javaw.exe
  • Client.exe

Malware Hash (MD5/SHA1/SH256)

  • 7fd526e1a190c10c060bac21de17d2c90eb2985633c9ab74020a2b78acd8a4c8
  • b20327c03703ebad191c0ba025a3f26494ff12c5908749e33e71589ae1e1f6b3
  • b214c7a127cb669a523791806353da5c5c04832f123a0a6df118642eee1632a3
  • b4e3b2a1f1e343d14af8d812d4a29440940b99aaf145b5699dfe277b5bfb8405

Remediation

Block all threat indicators at your respective controls.

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    •     SOC Content Pack
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      • Hybrid SOC
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      • Managed Penetration Testing
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