MVISION Insights: UNC2447 Exploits SonicWall VPN Zero-Day
Technical Articles ID:
KB94756
Last Modified: 8/10/2021
Last Modified: 8/10/2021
Environment
IMPORTANT: This Knowledge Base article discusses a specific threat that is being automatically tracked by MVISION Insights technology. The content is intended for use by MVISION Insights users, but is provided for general knowledge to all McAfee Enterprise customers. Contact McAfee Enterprise for more information about MVISION Insights.
Summary
UNC2447, an uncategorized threat group, exploited a SQL-Injection vulnerability in a SonicWall VPN application and dropped the SOMBRAT backdoor. The flaw is classified under CVE-2021-20016 and affects the SonicWall Secure Mobile Access SMA 100 series remote access products. Additional malware and tools are also associated with this group including WARPRISM, FOXGRABBER, FIVEHANDS, HELLOKITTY, DEATHRANSOM, and Cobalt Strike BEACON infrastructure. The malicious software is used to drop additional tools, harvest credentials, run arbitrary code, and encrypt files for extortion.
The McAfee Enterprise ATR Team gathers and analyzes information from multiple open and closed sources before disseminating intelligence reports.
This campaign was researched by FireEye and shared publicly.
How to use this article:
- If a Threat Hunting table has been created, use the rules contained to search for malware related to this campaign.
- Review the product detection table and confirm that your environment is at least on the specified content version.
To download the latest content versions, go to the Security Updates page.
- Scroll down and review the "Product Countermeasures" section of this article. Consider implementing them if they are not already in place.
- Review
KB91836 - Countermeasures for entry vector threats, which contains countermeasures . - Review KB87843 - List of and best practices for Endpoint Security Dynamic Application Containment rules.
- Review KB82925 - Identify what rule corresponds to an Adaptive Threat Protection and Threat Intelligence Exchange event.
This Knowledge Base article discusses a specific threat that is being tracked. The list of IOCs will change over time; check MVISION Insights for the latest IOCs.
Campaign IOC
| Type | Value |
| SHA256 | 9A7DAAFC56300BD94CEEF23EAC56A0735B63EC6B9A7A409FB5A9B63EFE1AA0B0 |
| SHA256 | B41A303A4CAA71FA260DD601A796033D8BFEBCAA6BD9DFD7AD956FAC5229A735 |
| SHA256 | 501487B025F25DDF1CA32DEB57A2B4DB43CCF6635C1EDC74B9CFF54CE0E5BCFE |
| SHA256 | 0E5F7737704C8F25B2B8157561BE54A463057CD4D79C7E016C30A1CF6590A85C |
| SHA256 | 52DACE403E8F9B4F7EA20C0C3565FA11B6953B404A7D49D63AF237A57B36FD2A |
| SHA256 | ABBE770CED0447A8677AFC64040C77E103C8297AB7E34877D48E14A779E6082E |
| SHA256 | CCACF4658AE778D02E4E55CD161B5A0772EB8B8EEE62FED34E2D8F11DB2CC4BC |
| SHA256 | 947E357BFDFE411BE6C97AF6559FD1CDC5C9D6F5CEA122BF174D124EE03D2DE8 |
| SHA256 | 7CAE410D16D9315655F8A2E64458F5BF9A5224D9C4E3743CF31C180D304C8473 |
| SHA256 | 15DF17BE2F97295B0D8D66E434E2949850C8EDC2A8EDDDF9B30B2B638B20612B |
| SHA256 | 02A08B994265901A649F1BCF6772BC06DF2EB51EB09906AF9FD0F4A8103E9851 |
| SHA256 | A147945635D5BD0FA832C9B55BC3EBCEA7A7787E8F89B98A44279F8EDDDA2A77 |
| SHA256 | 71C97EA6D14F4A6DA86D51D07EA284447CC486488B9637F9C1DE0BA42054C6F2 |
| SHA256 | 7D57E0BA8B36EC221B16807CE4E13A1125D53922FA50C3827A5EBD6811736FFD |
| SHA256 | EF614B456CA4EAA8156A895F450577600AD41BD553B4512AE6ABF3FB8B5EB04E |
| SHA256 | 99BAFFCD7A6B939B72C99AF7C1E88523A50053AB966A079D9BF268AFF884426E |
| SHA256 | DC007E71085297883CA68A919E37687427B7E6DB0C24CA014C148F226D8DD98F |
| SHA256 | 822E73ED2F92E3A061FA830244CD838617D6533EE47143A98C9CB1F119026ADC |
| SHA256 | FE6F356105B488F407AD09819547E138007D6A6C5C1E731C7DA52F5A985006EF |
| SHA256 | 4AA0985CCD4389EEF5F3D6D9607CE27B0659AA0E839D1E7A0DC6F1A7EBE31878 |
| -SHA256 | 6ABED03C2454050E1095F6DB954FB2A40BA5AF0736E5BF31BF9DB36DF149FD2E |
| SHA256 | BADE05A30ABA181FFBE4325C1BA6C76EF9E02CBE41A4190BD3671152C51C4A7B |
| SHA256 | 61E286C62E556AC79B01C17357176E58EFB67D86C5D17407E128094C3151F7F9 |
| SHA256 | 7CD18FAD221A1745CD608C6231EEDB47C9CA548455A053C45BEF6EDBD4852AB1 |
| SHA256 | 7BE901C5F7FFEB8F99E4F5813C259D0227335680380ED06DF03FB836A041CB06 |
| SHA256 | 13E493C48958A00F2EDA0422C719B8F271CFBC8C14D66C642FA2F6F42928BED4 |
| SHA256 | 3AE7BEDF236D4E53A33F3A3E1E80EAE2D93E91B1988DA2F7FCB8FDE5DCC3A0E9 |
| SHA256 | AE2D3A638B12E97D4A8E54FB5770FAD51103D38D6FAF645CF7C479D687BD5205 |
| SHA256 | 63BA6DB8C81C60DD9F1A0C7C4A4C51E2E56883F063509ED7B543AD7651FD8806 |
| SHA256 | AB828F0E0555F88E3005387CB523F221A1933BBD7DB4F05902A1E5CC289E7BA4 |
| SHA256 | 3B90D9FAD35A45A738C6B2830896168C99014474DE17984411BE61B25ACF6DB5 |
| SHA256 | FDC2DE095390EC046DC3F398A47A38670282BDC2EF76DD7FC1195AC4EE0421A8 |
| SHA256 | 3090BFF3D16B0B150444C3BFB196229BA0AB0B6B826FA306803DE0192BEDDB80 |
| SHA256 | 10887D13DBA1F83EF34E047455A04416D25A83079A7F3798CE3483E0526E3768 |
| SHA256 | 3F77E49BBA22D8DF168F774239C523979A3D8E353F2838D97D7DB2DC1166D00C |
| SHA256 | CF416C1893098FCB4A3572C9575A43D53EF3657BF48A597174AC2283FBCB0F4C |
| SHA256 | CAB7AFEC0B4B8849CEF1A00557E8FC9F6F2F05996861A6665D7F67B5E961B195 |
| SHA256 | E09EAD5B6AC9EC9203B9FB6C9152BA451498BB291478A69AC71FF6C36C468F9E |
| SHA256 | C2498845ED4B287FD0F95528926C8EE620EF0CBB5B27865B2007D6379FFE4323 |
| SHA256 | 9882C2F5A95D7680626470F6C0D3609C7590EB552065F81AB41FFE074EA74E82 |
| SHA256 | DAE04677E464F4E4CC317E369380D2FF1BE7C2819B83ED0AD04B4C9489AF381C |
| DOMAIN | celomito.com |
| DOMAIN | feticost.com |
| DOMAIN | cosarm.com |
| DOMAIN | portalcos.com |
| IP-DST | 64.227.24.12 |
| IP-DST | 157.230.184.142 |
Minimum Content Versions:
| Content Type | Version |
| V2 DAT (VirusScan Enterprise) | 9981 |
| V3 DAT (Endpoint Security) | 4433 |
Detection Summary
| IOC | Scanner | Detection |
| 9A7DAAFC56300BD94CEEF23EAC56A0735B63EC6B9A7A409FB5A9B63EFE1AA0B0 | AVEngine V2 | Ransom-Kitty!06CE6CD8BDE7 |
| AVEngine V3 | Ransom-Kitty!06CE6CD8BDE7 | |
| JTI (ATP Rules) | JTI/Suspect.196612!06ce6cd8bde7 | |
| RP Static | - | |
| RP Dynamic | - |
| IOC | Scanner | Detection |
| B41A303A4CAA71FA260DD601A796033D8BFEBCAA6BD9DFD7AD956FAC5229A735 | AVEngine V2 | PS/WarPrism |
| AVEngine V3 | PS/WarPrism | |
| JTI (ATP Rules) | - | |
| RP Static | - | |
| RP Dynamic | - |
| IOC | Scanner | Detection |
| 501487B025F25DDF1CA32DEB57A2B4DB43CCF6635C1EDC74B9CFF54CE0E5BCFE | AVEngine V2 | GenericRXNU-US!136BD70F7AA9 |
| AVEngine V3 | GenericRXNU-US!136BD70F7AA9 | |
| JTI (ATP Rules) | JTI/Suspect.196612!136bd70f7aa9 | |
| RP Static | Real Protect-LS!136BD70F7AA9 | |
| RP Dynamic | - |
| IOC | Scanner | Detection |
| 0E5F7737704C8F25B2B8157561BE54A463057CD4D79C7E016C30A1CF6590A85C | AVEngine V2 | Ransom-HelloKitty |
| AVEngine V3 | Ransom-HelloKitty | |
| JTI (ATP Rules) | JTI/Suspect.196612!1a79b6d169aa | |
| RP Static | - | |
| RP Dynamic | - |
| IOC | Scanner | Detection |
| 52DACE403E8F9B4F7EA20C0C3565FA11B6953B404A7D49D63AF237A57B36FD2A | AVEngine V2 | Ransom-HelloKitty |
| AVEngine V3 | Ransom-HelloKitty | |
| JTI (ATP Rules) | JTI/Suspect.196612!1b0b9e4cddcb | |
| RP Static | - | |
| RP Dynamic | - |
| IOC | Scanner | Detection |
| ABBE770CED0447A8677AFC64040C77E103C8297AB7E34877D48E14A779E6082E | AVEngine V2 | PS/WarPrism |
| AVEngine V3 | PS/WarPrism | |
| JTI (ATP Rules) | - | |
| RP Static | Real Protect-PSL!1CD03C0D00F7 | |
| RP Dynamic | - |
| IOC | Scanner | Detection |
| CCACF4658AE778D02E4E55CD161B5A0772EB8B8EEE62FED34E2D8F11DB2CC4BC | AVEngine V2 | PS/Wwansvc |
| AVEngine V3 | PS/Wwansvc | |
| JTI (ATP Rules) | - | |
| RP Static | - | |
| RP Dynamic | - |
| IOC | Scanner | Detection |
| 947E357BFDFE411BE6C97AF6559FD1CDC5C9D6F5CEA122BF174D124EE03D2DE8 | AVEngine V2 | Ransom-HelloKitty |
| AVEngine V3 | Ransom-HelloKitty | |
| JTI (ATP Rules) | JTI/Suspect.196612!22d35005e926 | |
| RP Static | - | |
| RP Dynamic | - |
| IOC | Scanner | Detection |
| 7CAE410D16D9315655F8A2E64458F5BF9A5224D9C4E3743CF31C180D304C8473 | AVEngine V2 | PS/WarPrism |
| AVEngine V3 | PS/WarPrism | |
| JTI (ATP Rules) | - | |
| RP Static | Real Protect-PSL!29E53B32D5B4 | |
| RP Dynamic | - |
| IOC | Scanner | Detection |
| 15DF17BE2F97295B0D8D66E434E2949850C8EDC2A8EDDDF9B30B2B638B20612B | AVEngine V2 | Trojan-Encoded |
| AVEngine V3 | Trojan-Encoded | |
| JTI (ATP Rules) | - | |
| RP Static | - | |
| RP Dynamic | - |
| IOC | Scanner | Detection |
| 02A08B994265901A649F1BCF6772BC06DF2EB51EB09906AF9FD0F4A8103E9851 | AVEngine V2 | Ransom-HelloKitty |
| AVEngine V3 | Ransom-HelloKitty | |
| JTI (ATP Rules) | JTI/Suspect.196612!39ea2394a6e6 | |
| RP Static | - | |
| RP Dynamic | - |
| IOC | Scanner | Detection |
| A147945635D5BD0FA832C9B55BC3EBCEA7A7787E8F89B98A44279F8EDDDA2A77 | AVEngine V2 | Ransom-HelloKitty |
| AVEngine V3 | Ransom-HelloKitty | |
| JTI (ATP Rules) | JTI/Suspect.196612!46ecc24ef6d2 | |
| RP Static | - | |
| RP Dynamic | - |
| IOC | Scanner | Detection |
| 71C97EA6D14F4A6DA86D51D07EA284447CC486488B9637F9C1DE0BA42054C6F2 | AVEngine V2 | Trojan-Encoded |
| AVEngine V3 | Trojan-Encoded | |
| JTI (ATP Rules) | - | |
| RP Static | - | |
| RP Dynamic | - |
| IOC | Scanner | Detection |
| 7D57E0BA8B36EC221B16807CE4E13A1125D53922FA50C3827A5EBD6811736FFD | AVEngine V2 | Trojan FFGrabber |
| AVEngine V3 | Trojan FFGrabber | |
| JTI (ATP Rules) | JTI/Suspect.196612!4d3d3919dda0 | |
| RP Static | - | |
| RP Dynamic | - |
| IOC | Scanner | Detection |
| EF614B456CA4EAA8156A895F450577600AD41BD553B4512AE6ABF3FB8B5EB04E | AVEngine V2 | Ransom-HelloKitty |
| AVEngine V3 | Ransom-HelloKitty | |
| JTI (ATP Rules) | JTI/Suspect.196612!57824214710b | |
| RP Static | - | |
| RP Dynamic | - |
| IOC | Scanner | Detection |
| 99BAFFCD7A6B939B72C99AF7C1E88523A50053AB966A079D9BF268AFF884426E | AVEngine V2 | Spy.agent.b |
| AVEngine V3 | Spy.agent.b | |
| JTI (ATP Rules) | JTI/Suspect.196612!6382d48fae67 | |
| RP Static | - | |
| RP Dynamic | - |
| IOC | Scanner | Detection |
| DC007E71085297883CA68A919E37687427B7E6DB0C24CA014C148F226D8DD98F | AVEngine V2 | Ransom-HelloKitty |
| AVEngine V3 | Ransom-HelloKitty | |
| JTI (ATP Rules) | JTI/Suspect.196612!6c849920155f | |
| RP Static | - | |
| RP Dynamic | - |
| IOC | Scanner | Detection |
| 822E73ED2F92E3A061FA830244CD838617D6533EE47143A98C9CB1F119026ADC | AVEngine V2 | GenericRXLP-MH!74C688A22822 |
| AVEngine V3 | GenericRXLP-MH!74C688A22822 | |
| JTI (ATP Rules) | JTI/Suspect.196612!74c688a22822 | |
| RP Static | - | |
| RP Dynamic | - |
| IOC | Scanner | Detection |
| FE6F356105B488F407AD09819547E138007D6A6C5C1E731C7DA52F5A985006EF | AVEngine V2 | GenericRXLP-MH!7D6E57CBC112 |
| AVEngine V3 | GenericRXLP-MH!7D6E57CBC112 | |
| JTI (ATP Rules) | JTI/Suspect.196612!7d6e57cbc112 | |
| RP Static | - | |
| RP Dynamic | - |
| IOC | Scanner | Detection |
| 4AA0985CCD4389EEF5F3D6D9607CE27B0659AA0E839D1E7A0DC6F1A7EBE31878 | AVEngine V2 | PS/WarPrism |
| AVEngine V3 | PS/WarPrism | |
| JTI (ATP Rules) | - | |
| RP Static | Real Protect-PSL!8071F66D6439 | |
| RP Dynamic | - |
| IOC | Scanner | Detection |
| 6ABED03C2454050E1095F6DB954FB2A40BA5AF0736E5BF31BF9DB36DF149FD2E | AVEngine V2 | PS/WarPrism |
| AVEngine V3 | PS/WarPrism | |
| JTI (ATP Rules) | - | |
| RP Static | Real Protect-PSL!8226D7615532 | |
| RP Dynamic | - |
| IOC | Scanner | Detection |
| BADE05A30ABA181FFBE4325C1BA6C76EF9E02CBE41A4190BD3671152C51C4A7B | AVEngine V2 | Ransom-HelloKitty |
| AVEngine V3 | Ransom-HelloKitty | |
| JTI (ATP Rules) | - | |
| RP Static | - | |
| RP Dynamic | - |
| IOC | Scanner | Detection |
| 61E286C62E556AC79B01C17357176E58EFB67D86C5D17407E128094C3151F7F9 | AVEngine V2 | Spy.agent.b |
| AVEngine V3 | Spy.agent.b | |
| JTI (ATP Rules) | JTI/Suspect.196612!87c78d62fd35 | |
| RP Static | - | |
| RP Dynamic | - |
| IOC | Scanner | Detection |
| 7CD18FAD221A1745CD608C6231EEDB47C9CA548455A053C45BEF6EDBD4852AB1 | AVEngine V2 | Trojan-Encoded |
| AVEngine V3 | Trojan-Encoded | |
| JTI (ATP Rules) | - | |
| RP Static | - | |
| RP Dynamic | - |
| IOC | Scanner | Detection |
| 7BE901C5F7FFEB8F99E4F5813C259D0227335680380ED06DF03FB836A041CB06 | AVEngine V2 | Ransom-HelloKitty |
| AVEngine V3 | Ransom-HelloKitty | |
| JTI (ATP Rules) | JTI/Suspect.196612!a64d79eba402 | |
| RP Static | - | |
| RP Dynamic | - |
| IOC | Scanner | Detection |
| 13E493C48958A00F2EDA0422C719B8F271CFBC8C14D66C642FA2F6F42928BED4 | AVEngine V2 | PS/CobalStrike |
| AVEngine V3 | PS/CobalStrike | |
| JTI (ATP Rules) | - | |
| RP Static | Real Protect-PSL!A809068B052B | |
| RP Dynamic | - |
| IOC | Scanner | Detection |
| 3AE7BEDF236D4E53A33F3A3E1E80EAE2D93E91B1988DA2F7FCB8FDE5DCC3A0E9 | AVEngine V2 | GenericRXNU-US!AF568E8A6060 |
| AVEngine V3 | GenericRXNU-US!AF568E8A6060 | |
| JTI (ATP Rules) | JTI/Suspect.196612!af568e8a6060 | |
| RP Static | - | |
| RP Dynamic | - |
| IOC | Scanner | Detection |
| AE2D3A638B12E97D4A8E54FB5770FAD51103D38D6FAF645CF7C479D687BD5205 | AVEngine V2 | PS/CobalStrike |
| AVEngine V3 | PS/CobalStrike | |
| JTI (ATP Rules) | - | |
| RP Static | - | |
| RP Dynamic | - |
| IOC | Scanner | Detection |
| 63BA6DB8C81C60DD9F1A0C7C4A4C51E2E56883F063509ED7B543AD7651FD8806 | AVEngine V2 | Ransom-SunCrypt |
| AVEngine V3 | Ransom-SunCrypt | |
| JTI (ATP Rules) | - | |
| RP Static | Real Protect-PSL!C171BCD34151 | |
| RP Dynamic | - |
| IOC | Scanner | Detection |
| AB828F0E0555F88E3005387CB523F221A1933BBD7DB4F05902A1E5CC289E7BA4 | AVEngine V2 | Trojan-FRON!C50AB1DF254C |
| AVEngine V3 | Trojan-FRON!C50AB1DF254C | |
| JTI (ATP Rules) | JTI/Suspect.196612!c50ab1df254c | |
| RP Static | Real Protect-PEE!C50AB1DF254C | |
| RP Dynamic | - |
| IOC | Scanner | Detection |
| 3B90D9FAD35A45A738C6B2830896168C99014474DE17984411BE61B25ACF6DB5 | AVEngine V2 | PS/WarPrism |
| AVEngine V3 | PS/WarPrism | |
| JTI (ATP Rules) | - | |
| RP Static | Real Protect-PSL!C925822C6D51 | |
| RP Dynamic | - |
| IOC | Scanner | Detection |
| FDC2DE095390EC046DC3F398A47A38670282BDC2EF76DD7FC1195AC4EE0421A8 | AVEngine V2 | Trojan-Encoded |
| AVEngine V3 | Trojan-Encoded | |
| JTI (ATP Rules) | - | |
| RP Static | - | |
| RP Dynamic | - |
| IOC | Scanner | Detection |
| 3090BFF3D16B0B150444C3BFB196229BA0AB0B6B826FA306803DE0192BEDDB80 | AVEngine V2 | Ransom-SunCrypt |
| AVEngine V3 | Ransom-SunCrypt | |
| JTI (ATP Rules) | - | |
| RP Static | Real Protect-PSL!D87FCD8D2BF4 | |
| RP Dynamic | - |
| IOC | Scanner | Detection |
| 10887D13DBA1F83EF34E047455A04416D25A83079A7F3798CE3483E0526E3768 | AVEngine V2 | RDN/Ransom |
| AVEngine V3 | RDN/Ransom | |
| JTI (ATP Rules) | - | |
| RP Static | - | |
| RP Dynamic | - |
| IOC | Scanner | Detection |
| 3F77E49BBA22D8DF168F774239C523979A3D8E353F2838D97D7DB2DC1166D00C | AVEngine V2 | PS/CobalStrike |
| AVEngine V3 | PS/CobalStrike | |
| JTI (ATP Rules) | - | |
| RP Static | Real Protect-PSL!DF6E6B3E53CC | |
| RP Dynamic | - |
| IOC | Scanner | Detection |
| CF416C1893098FCB4A3572C9575A43D53EF3657BF48A597174AC2283FBCB0F4C | AVEngine V2 | PS/WarPrism |
| AVEngine V3 | PS/WarPrism | |
| JTI (ATP Rules) | - | |
| RP Static | Real Protect-PSL!E18B27F75C95 | |
| RP Dynamic | - |
| IOC | Scanner | Detection |
| CAB7AFEC0B4B8849CEF1A00557E8FC9F6F2F05996861A6665D7F67B5E961B195 | AVEngine V2 | PS/CobalStrike |
| AVEngine V3 | PS/CobalStrike | |
| JTI (ATP Rules) | - | |
| RP Static | Real Protect-PSL!E39184EACBA2 | |
| RP Dynamic | - |
| IOC | Scanner | Detection |
| E09EAD5B6AC9EC9203B9FB6C9152BA451498BB291478A69AC71FF6C36C468F9E | AVEngine V2 | Trojan-Encoded |
| AVEngine V3 | Trojan-Encoded | |
| JTI (ATP Rules) | - | |
| RP Static | - | |
| RP Dynamic | - |
| IOC | Scanner | Detection |
| C2498845ED4B287FD0F95528926C8EE620EF0CBB5B27865B2007D6379FFE4323 | AVEngine V2 | Ransom-HelloKitty |
| AVEngine V3 | Ransom-HelloKitty | |
| JTI (ATP Rules) | - | |
| RP Static | - | |
| RP Dynamic | - |
| IOC | Scanner | Detection |
| 9882C2F5A95D7680626470F6C0D3609C7590EB552065F81AB41FFE074EA74E82 | AVEngine V2 | PS/Agent.dm |
| AVEngine V3 | PS/Agent.dm | |
| JTI (ATP Rules) | - | |
| RP Static | Real Protect-PSL!F73997700498 | |
| RP Dynamic | - |
| IOC | Scanner | Detection |
| DAE04677E464F4E4CC317E369380D2FF1BE7C2819B83ED0AD04B4C9489AF381C | AVEngine V2 | Hacktool.g |
| AVEngine V3 | Hacktool.g | |
| JTI (ATP Rules) | JTI/Suspect.196612!a01a2ba3ae9f | |
| RP Static | - | |
| RP Dynamic | - |
Minimum set of Manual Rules to improve protection to block this campaign
IMPORTANT: Always follow best practices when you enable new rules and signatures.
When you implement new rules or signatures, always set them to Report mode first and check the alerts generated. Resolve any issues that arise and then set the rules to Block. This step mitigates against triggering false positives and allows you to refine your configuration.
For more information, see KB87843 - List of and best practices for Endpoint Security Dynamic Application Containment rules.
Endpoint Security - Advanced Threat Protection:
Rule ID: 4 Use GTI file reputation to identify trusted or malicious files
Endpoint Security - Exploit Prevention:
Rule ID: 6135 Unmanaged Powershell Detected
Rule ID: 6086 Powershell Command Restriction - Command
Rule ID: 6073 Execution Policy Bypass in Powershell
Rule ID: 6085 Powershell Command Restriction - File
Rule ID: 6127 Suspicious LSASS Access from Powershell
Rule ID: 6086 Powershell Command Restriction - Command
Rule ID: 6073 Execution Policy Bypass in Powershell
Rule ID: 6085 Powershell Command Restriction - File
Rule ID: 6127 Suspicious LSASS Access from Powershell
Host Intrusion Prevention:
Rule ID: 6081 Powershell Command Restriction - NoProfile
Rule ID: 6135 Unmanaged Powershell Detected
Rule ID: 6086 Powershell Command Restriction - Command
Rule ID: 6073 Execution Policy Bypass in Powershell
Rule ID: 6082 Powershell Command Restriction - ExecutionPolicy Unrestricted
Rule ID: 6085 Powershell Command Restriction - File
Rule ID: 6135 Unmanaged Powershell Detected
Rule ID: 6086 Powershell Command Restriction - Command
Rule ID: 6073 Execution Policy Bypass in Powershell
Rule ID: 6082 Powershell Command Restriction - ExecutionPolicy Unrestricted
Rule ID: 6085 Powershell Command Restriction - File
Endpoint Security - Access Protection Custom Rules:
Rule: 1
Executables (Include):
*
Subrules:
Subrule Type: Files
Operations:
create
Targets (Include):
*your_files_are_encrypted.html
*
Subrules:
Subrule Type: Files
Operations:
create
Targets (Include):
*your_files_are_encrypted.html
Rule: 2
Executables (Include):
*
Subrules:
Subrule Type: Files
Operations:
create
Targets (Include):
*read_me_lkd.txt
*
Subrules:
Subrule Type: Files
Operations:
create
Targets (Include):
*read_me_lkd.txt
VirusScan Enterprise - Access Protection Custom Rules:
Rule: 1
Rule Type: File
Process to include: *
File or folder name to block: *your_files_are_encrypted.html
File actions to prevent: Create
Process to include: *
File or folder name to block: *your_files_are_encrypted.html
File actions to prevent: Create
Rule: 2
Rule Type: File
Process to include: *
File or folder name to block: *read_me_lkd.txt
File actions to prevent: Create
Process to include: *
File or folder name to block: *read_me_lkd.txt
File actions to prevent: Create
Aggressive set of Manual Rules to improve protection to block this campaign
IMPORTANT: Always follow best practices when you enable new rules and signatures.
When you implement new rules or signatures, always set them to Report mode first and check the alerts generated. Resolve any issues that arise and then set the rules to Block. This step mitigates against triggering false positives and allows you to refine your configuration.
For more information, see KB87843 - List of and best practices for Endpoint Security Dynamic Application Containment rules.
Virusscan Enterprise - Access Protection Rules:
Prevent creation of new executable files in the Windows folder
Prevent programs registering as a service
Prevent programs registering as a service
Host Intrusion Prevention:
Rule ID: 1148 CMD Tool Access by a Network Aware Application
Rule ID: 2218 Autorun File Read Blocked
Rule ID: 6053 Accessing other users home directory
Rule ID: 412 Double File Extension Execution
Rule ID: 2806 Attempt to create a hardlink to a file
Rule ID: 1020 Windows Agent Shielding - File Access
Rule ID: 6011 Generic Application Invocation Protection
