April 26, 2024
Proactive Defense: The Importance of Incident Response Planning in Cybersecurity
Rewterz Threat Advisory – Cisco Firepower Threat Defense Software Multiple Security Updates
May 7, 2020Rewterz Threat Advisory – CVE-2020-3125 – Cisco Adaptive Security Appliance Software Kerberos Vulnerability
May 7, 2020Rewterz Threat Advisory – Cisco Firepower Threat Defense Software Multiple Security Updates
May 7, 2020Rewterz Threat Advisory – CVE-2020-3125 – Cisco Adaptive Security Appliance Software Kerberos Vulnerability
May 7, 2020
Severity
Medium
Analysis Summary
| Cybercriminal and advanced persistent threat (APT) groups are leveraging COVID-19 themed health, informational, and warning notice emails in an attempt to obtain credentials, e.g., Microsoft O365 accounts. These emails direct targets to click links by purporting to be online services requiring authentication. Malicious actors use these links to capture victim credentials and then redirect victims to the World Health Organization’s (WHO) Coronavirus notice. Threat actors are continuing with their malicious activities to rob the users of from their sensitive data for their gain in these trying times and are making full use of the situation. |
Impact
- Credential theft
- Exposure of sensitive data
Indicators of Compromise
Filename
- AWARENESS NOTICE ON CORONAVIRUS COVID-19 DOCUMENT_zip[.]jar
- Covid-19_zip[.]bin
- COVID-19[.]rar
- Attachments-Fwd_ Proforma for COVID-19[.]zip
- COVID-19 WHO RECOMENDED V[.]gz
- Covid 19 Immunity Tips (2)[.]zip
- zbetcheckin_tracker_COVID-19[.]jar
MD5
- bac2f22d53c6f2b43eba6adbb0f2ea9a
- 08dd5ee67ee69ddfa11cb55562baef58
- c49856a3df308e8b1739b357832c8e9b
- 5da446b5f22bfa77a51b654762583a28
- 378bbb172ccae5e28549a003e4e84bce
- 51b7f0213cb2945d42b88996761ce74b
- e8973e617a743a5597b63ce268986761
SHA-256
f7b0d6d95f2644e32c22eb3e681e33387ac27d71dd73eee3ff37ce77985ab177
3e1fb4ff54112a78d8bdccbe596c119201f079010c4f69cdf2c99385e7aee3dc
15e029c3834435150c76741e714540fcb799662db8cc2c61ba4ef192a781727b
47f1570e770d236836c0d3cb50755b6dd91e1be58a0d3e61507c7baacfd27784
43670ae43df9e361fa15f09f611da32db104ee207ed5af3e7e7f098ad82a68e0
2c464648ff97fd39dab054d0c3e1bd249e244fcc975b697e312796669c7763f1
5b0ba8d58a64630cb5fcb80e72520bd2ef6f322003fa2588d4d594620e6685ae
Remediation
- Block all threat indicators at your respective controls.
- Always be suspicious about emails sent by unknown senders.
- Never click on the links/attachments sent by unknown senders.