Concrete signature match: Trojan - Appears legitimate but performs malicious actions for .NET (Microsoft Intermediate Language) platform, family Vigorf
Trojan:MSIL/Vigorf.A is a malicious program written for the .NET Framework that provides attackers with unauthorized access and control over an affected system. Its goals typically include data theft, deploying additional malware such as ransomware, or incorporating the system into a botnet. This is a high-confidence detection based on a specific malware signature, not general behavior, with a low risk of being a false positive.
Relevant strings associated with this threat: - |#d1e49aac-8f56-4280-b9ba-993a6d77406c (NID) - }#d1e49aac-8f56-4280-b9ba-993a6d77406c (NID) - &|#b2b3f03d-6a65-4f7b-a9c7-1c7ef74a9ba4 (NID) - &}#b2b3f03d-6a65-4f7b-a9c7-1c7ef74a9ba4 (NID) - y*|#56a863a9-875e-4185-98a7-b882c64b5ce5 (NID) - y*}#56a863a9-875e-4185-98a7-b882c64b5ce5 (NID) - C|#be9ba2d9-53ea-4cdc-84e5-9b1eeee46550 (NID) - C}#be9ba2d9-53ea-4cdc-84e5-9b1eeee46550 (NID) - L|#3b576869-a4ec-4529-8536-b80a7769e899 (NID) - L}#3b576869-a4ec-4529-8536-b80a7769e899 (NID) - |#5beb7efe-fd9a-4556-801d-275e5ffc04cc (NID) - }#5beb7efe-fd9a-4556-801d-275e5ffc04cc (NID) - |#01443614-cd74-433a-b99e-2ecdc07bfc25 (NID) - }#01443614-cd74-433a-b99e-2ecdc07bfc25 (NID) - |#d3e037e1-3eb8-44c8-a917-57927947596d (NID) - }#d3e037e1-3eb8-44c8-a917-57927947596d (NID) - |#7674ba52-37eb-4a4f-a9a1-f0f9a1619a2c (NID) - }#7674ba52-37eb-4a4f-a9a1-f0f9a1619a2c (NID) - |#92e97fa1-2edf-4476-bdd6-9dd0b4dddc7b (NID) - }#92e97fa1-2edf-4476-bdd6-9dd0b4dddc7b (NID)
360e6f2288b6c8364159e80330b9af83f2d561929d206bc1e1e5f1585432b28fImmediately isolate the affected machine from the network to prevent lateral movement. Use Windows Defender or another reputable endpoint security solution to perform a full scan and remove the detected threat. Investigate the initial access vector and change all credentials for accounts used on the compromised system.