fix: travis import/export

pull/3750/head
Raphaël Vinot 2018-10-08 20:42:22 +02:00
parent 6c109d3830
commit 0eb0e8d4db
2 changed files with 40 additions and 83 deletions

View File

@ -1,68 +1,40 @@
uuid,event_id,category,type,value,comment,to_ids,date,object_relation,object_uuid,object_name,object_meta_category
"5488466a-f0d0-4b58-89a5-15bc950d210b",1635,"External analysis","link","https://www.f-secure.com/documents/996508/1030745/w32_regin_stage_1.pdf","",,20141210,"","","",""
"548847d8-01e0-4231-a739-15bb950d210b",1635,"Payload installation","md5","744c07e886497f7b68f6f7fe57b7ab54","Regin samples collected.",1,20141210,"","","",""
"548847d8-05f8-49e7-af79-15bb950d210b",1635,"Payload installation","md5","47d0e8f9d7a6429920329207a32ecc2e","Regin samples collected.",1,20141210,"","","",""
"548847d8-3fbc-4a06-ba82-15bb950d210b",1635,"Payload installation","md5","2c8b9d2885543d7ade3cae98225e263b","Regin samples collected.",1,20141210,"","","",""
"548847d8-9db0-4df6-8206-15bb950d210b",1635,"Payload installation","md5","26297dc3cd0b688de3b846983c5385e5","Regin samples collected.",1,20141210,"","","",""
"548847d8-a33c-41f3-9f7a-15bb950d210b",1635,"Payload installation","md5","01c2f321b6bfdb9473c079b0797567ba","Regin samples collected.",1,20141210,"","","",""
"548847d8-c950-48eb-b960-15bb950d210b",1635,"Payload installation","md5","4b6b86c7fec1c574706cecedf44abded","Regin samples collected.",1,20141210,"","","",""
"548847d9-1404-4331-ae3c-15bb950d210b",1635,"Payload installation","md5","90fecc6a89b2e22d82d58878d93477d4","Regin samples collected.",1,20141210,"","","",""
"548847d9-39dc-4247-b23d-15bb950d210b",1635,"Payload installation","md5","06665b96e293b23acc80451abb413e50","Regin samples collected.",1,20141210,"","","",""
"548847d9-3b28-449e-b527-15bb950d210b",1635,"Payload installation","md5","e94393561901895cb0783edc34740fd4","Regin samples collected.",1,20141210,"","","",""
"548847d9-4020-41da-b5f3-15bb950d210b",1635,"Payload installation","md5","db405ad775ac887a337b02ea8b07fddc","Regin samples collected.",1,20141210,"","","",""
"548847d9-6340-44a0-8f33-15bb950d210b",1635,"Payload installation","md5","ffb0b9b5b610191051a7bdf0806e1e47","Regin samples collected.",1,20141210,"","","",""
"548847d9-8b18-4654-9766-15bb950d210b",1635,"Payload installation","md5","f3ffc2aaaa1e2ab55ec26ff098653347","Regin samples collected.",1,20141210,"","","",""
"548847d9-a564-4178-b8e6-15bb950d210b",1635,"Payload installation","md5","6662c390b2bbbd291ec7987388fc75d7","Regin samples collected.",1,20141210,"","","",""
"548847d9-afe0-4531-a4b0-15bb950d210b",1635,"Payload installation","md5","187044596bc1328efa0ed636d8aa4a5c","Regin samples collected.",1,20141210,"","","",""
"548847d9-b63c-4c95-a2bd-15bb950d210b",1635,"Payload installation","md5","1800def71006ca6790767e202fae9b9a","Regin samples collected.",1,20141210,"","","",""
"548847d9-e6fc-4b93-a773-15bb950d210b",1635,"Payload installation","md5","bfbe8c3ee78750c3a520480700e440f8","Regin samples collected.",1,20141210,"","","",""
"548847d9-fd54-4e49-909b-15bb950d210b",1635,"Payload installation","md5","89003e9a1ae635c97ebad07aebc67f00","Regin samples collected.",1,20141210,"","","",""
"548847da-1660-4562-a1f8-15bb950d210b",1635,"Payload installation","md5","b505d65721bb2453d5039a389113b566","Regin samples collected.",1,20141210,"","","",""
"548847da-2134-43d7-ba22-15bb950d210b",1635,"Payload installation","md5","8fcf4e53ece6111758a1dd3139dc7cad","Regin samples collected.",1,20141210,"","","",""
"548847da-3e40-4ab2-a5eb-15bb950d210b",1635,"Payload installation","md5","1c024e599ac055312a4ab75b3950040a","Regin samples collected.",1,20141210,"","","",""
"548847da-49c0-404d-ae42-15bb950d210b",1635,"Payload installation","md5","d240f06e98c8d3e647cbf4d442d79475","Regin samples collected.",1,20141210,"","","",""
"548847da-71ec-4b2b-bae5-15bb950d210b",1635,"Payload installation","md5","148c1bb9d405d717252c77593aff4bd8","Regin samples collected.",1,20141210,"","","",""
"548847da-9798-4b6d-b422-15bb950d210b",1635,"Payload installation","md5","ba7bb65634ce1e30c1e5415be3d1db1d","Regin samples collected.",1,20141210,"","","",""
"548847da-ac78-474c-86fe-15bb950d210b",1635,"Payload installation","md5","b29ca4f22ae7b7b25f79c1d4a421139d","Regin samples collected.",1,20141210,"","","",""
"548847da-c2d0-4d24-821e-15bb950d210b",1635,"Payload installation","md5","b269894f434657db2b15949641a67532","Regin samples collected.",1,20141210,"","","",""
"548847da-ffe4-4a90-9f2a-15bb950d210b",1635,"Payload installation","md5","22bfc970f707fd775d49e875b63c2f0c","Regin samples collected.",1,20141210,"","","",""
"548847db-060c-4275-a0c7-15bb950d210b",1635,"Payload installation","md5","049436bb90f71cf38549817d9b90e2da","Regin samples collected.",1,20141210,"","","",""
"54884832-2608-4fe6-959e-1ac6950d210b",1635,"Artifacts dropped","filename","ser8uart.sys","",,20141210,"","","",""
"54884832-5134-460e-bea2-1ac6950d210b",1635,"Artifacts dropped","filename","atdisk.sys","",,20141210,"","","",""
"54884832-6fb4-4c63-937c-1ac6950d210b",1635,"Artifacts dropped","filename","rdpmdd.sys","",,20141210,"","","",""
"54884832-93a4-4fb0-aeba-1ac6950d210b",1635,"Artifacts dropped","filename","usbclass.sys","",,20141210,"","","",""
"54884832-983c-4e4c-a692-1ac6950d210b",1635,"Artifacts dropped","filename","pcidump.sys","",,20141210,"","","",""
"54884832-f2a8-46ff-be58-1ac6950d210b",1635,"Artifacts dropped","filename","abiosdsk.sys","",,20141210,"","","",""
"5488486c-1418-4624-b87c-15ba950d210b",1635,"Artifacts dropped","regkey","Class\{4F20E605-9452-4787-B793-D0204917CA58}","",1,20141210,"","","",""
"5488486c-47ec-4952-8e60-15ba950d210b",1635,"Artifacts dropped","regkey","Class\{9B9A8ADB-8864-4BC4-8AD5-B17DFDBB9F58}","",1,20141210,"","","",""
"5488486c-a044-4c31-830c-15ba950d210b",1635,"Artifacts dropped","regkey","HKLM\System\CurrentControlSet\Control\","",1,20141210,"","","",""
"5488488d-a4ec-4b40-bd7d-15c7950d210b",1635,"External analysis","text","In this document we analyze a set of 32-bit samples
which represents stage #1 of the complex threat that is
known as Regin. Based on our analysis of the malwares
functionalities, this part of the Regin threat can be
considered just a support module — its sole purpose
is to facilitate and enable the operations of stage #2
by loading it and making it more difficult to detect by
security products.
Regins stage #1 targets the Windows platform and
support various versions of the operating system,
beginning with Windows NT 4.0. Based on our analysis,
the samples may be classified into two categories: “pure”
samples that do not feature any extra, non-malicious
code; and “augmented” ones which feature malware
code as part of another device driver. The existence of
“augmented” samples indicates the intention of the
attacker to remain undiscovered for as long as possible.
When activated, samples of Regin stage #1 will
retrieve encrypted content from specific locations of
an already compromised system, map it into kernel
memory and transfer control to it. In terms of technical
sophistication, stage #1s import resolution process is
of particular interest, as the malware uses the unusual
“trampoline” technique to mask the payloads access to
API functions.
It is clear that this support component, that represents
the initial stage of a very complex threat, has been
instrumental in securing long-term persistence in the
attacks that made use of this threat.","",,20141210,"","","",""
"54884899-35b8-48a3-9da2-15c6950d210b",1635,"Other","text","Regin","",,20141210,"","","",""
uuid,event_id,category,type,value,comment,to_ids,date,object_relation,attribute_tag,object_uuid,object_name,object_meta_category
"5488466a-f0d0-4b58-89a5-15bc950d210b",1,"External analysis","link","https://www.f-secure.com/documents/996508/1030745/w32_regin_stage_1.pdf","",0,1418217066,"","","","",""
"548847d8-01e0-4231-a739-15bb950d210b",1,"Payload installation","md5","744c07e886497f7b68f6f7fe57b7ab54","Regin samples collected.",1,1418217432,"","","","",""
"548847d8-05f8-49e7-af79-15bb950d210b",1,"Payload installation","md5","47d0e8f9d7a6429920329207a32ecc2e","Regin samples collected.",1,1418217432,"","","","",""
"548847d8-3fbc-4a06-ba82-15bb950d210b",1,"Payload installation","md5","2c8b9d2885543d7ade3cae98225e263b","Regin samples collected.",1,1418217432,"","","","",""
"548847d8-9db0-4df6-8206-15bb950d210b",1,"Payload installation","md5","26297dc3cd0b688de3b846983c5385e5","Regin samples collected.",1,1418217432,"","","","",""
"548847d8-a33c-41f3-9f7a-15bb950d210b",1,"Payload installation","md5","01c2f321b6bfdb9473c079b0797567ba","Regin samples collected.",1,1418217432,"","","","",""
"548847d8-c950-48eb-b960-15bb950d210b",1,"Payload installation","md5","4b6b86c7fec1c574706cecedf44abded","Regin samples collected.",1,1418217432,"","","","",""
"548847d9-1404-4331-ae3c-15bb950d210b",1,"Payload installation","md5","90fecc6a89b2e22d82d58878d93477d4","Regin samples collected.",1,1418217433,"","","","",""
"548847d9-39dc-4247-b23d-15bb950d210b",1,"Payload installation","md5","06665b96e293b23acc80451abb413e50","Regin samples collected.",1,1418217433,"","","","",""
"548847d9-3b28-449e-b527-15bb950d210b",1,"Payload installation","md5","e94393561901895cb0783edc34740fd4","Regin samples collected.",1,1418217433,"","","","",""
"548847d9-4020-41da-b5f3-15bb950d210b",1,"Payload installation","md5","db405ad775ac887a337b02ea8b07fddc","Regin samples collected.",1,1418217433,"","","","",""
"548847d9-6340-44a0-8f33-15bb950d210b",1,"Payload installation","md5","ffb0b9b5b610191051a7bdf0806e1e47","Regin samples collected.",1,1418217433,"","","","",""
"548847d9-8b18-4654-9766-15bb950d210b",1,"Payload installation","md5","f3ffc2aaaa1e2ab55ec26ff098653347","Regin samples collected.",1,1418217433,"","","","",""
"548847d9-a564-4178-b8e6-15bb950d210b",1,"Payload installation","md5","6662c390b2bbbd291ec7987388fc75d7","Regin samples collected.",1,1418217433,"","","","",""
"548847d9-afe0-4531-a4b0-15bb950d210b",1,"Payload installation","md5","187044596bc1328efa0ed636d8aa4a5c","Regin samples collected.",1,1418217433,"","","","",""
"548847d9-b63c-4c95-a2bd-15bb950d210b",1,"Payload installation","md5","1800def71006ca6790767e202fae9b9a","Regin samples collected.",1,1418217433,"","","","",""
"548847d9-e6fc-4b93-a773-15bb950d210b",1,"Payload installation","md5","bfbe8c3ee78750c3a520480700e440f8","Regin samples collected.",1,1418217433,"","","","",""
"548847d9-fd54-4e49-909b-15bb950d210b",1,"Payload installation","md5","89003e9a1ae635c97ebad07aebc67f00","Regin samples collected.",1,1418217433,"","","","",""
"548847da-1660-4562-a1f8-15bb950d210b",1,"Payload installation","md5","b505d65721bb2453d5039a389113b566","Regin samples collected.",1,1418217434,"","","","",""
"548847da-2134-43d7-ba22-15bb950d210b",1,"Payload installation","md5","8fcf4e53ece6111758a1dd3139dc7cad","Regin samples collected.",1,1418217434,"","","","",""
"548847da-3e40-4ab2-a5eb-15bb950d210b",1,"Payload installation","md5","1c024e599ac055312a4ab75b3950040a","Regin samples collected.",1,1418217434,"","","","",""
"548847da-49c0-404d-ae42-15bb950d210b",1,"Payload installation","md5","d240f06e98c8d3e647cbf4d442d79475","Regin samples collected.",1,1418217434,"","","","",""
"548847da-71ec-4b2b-bae5-15bb950d210b",1,"Payload installation","md5","148c1bb9d405d717252c77593aff4bd8","Regin samples collected.",1,1418217434,"","","","",""
"548847da-9798-4b6d-b422-15bb950d210b",1,"Payload installation","md5","ba7bb65634ce1e30c1e5415be3d1db1d","Regin samples collected.",1,1418217434,"","","","",""
"548847da-ac78-474c-86fe-15bb950d210b",1,"Payload installation","md5","b29ca4f22ae7b7b25f79c1d4a421139d","Regin samples collected.",1,1418217434,"","","","",""
"548847da-c2d0-4d24-821e-15bb950d210b",1,"Payload installation","md5","b269894f434657db2b15949641a67532","Regin samples collected.",1,1418217434,"","","","",""
"548847da-ffe4-4a90-9f2a-15bb950d210b",1,"Payload installation","md5","22bfc970f707fd775d49e875b63c2f0c","Regin samples collected.",1,1418217434,"","","","",""
"548847db-060c-4275-a0c7-15bb950d210b",1,"Payload installation","md5","049436bb90f71cf38549817d9b90e2da","Regin samples collected.",1,1418217435,"","","","",""
"54884832-2608-4fe6-959e-1ac6950d210b",1,"Artifacts dropped","filename","ser8uart.sys","",0,1418217522,"","","","",""
"54884832-5134-460e-bea2-1ac6950d210b",1,"Artifacts dropped","filename","atdisk.sys","",0,1418217522,"","","","",""
"54884832-6fb4-4c63-937c-1ac6950d210b",1,"Artifacts dropped","filename","rdpmdd.sys","",0,1418217522,"","","","",""
"54884832-93a4-4fb0-aeba-1ac6950d210b",1,"Artifacts dropped","filename","usbclass.sys","",0,1418217522,"","","","",""
"54884832-983c-4e4c-a692-1ac6950d210b",1,"Artifacts dropped","filename","pcidump.sys","",0,1418217522,"","","","",""
"54884832-f2a8-46ff-be58-1ac6950d210b",1,"Artifacts dropped","filename","abiosdsk.sys","",0,1418217522,"","","","",""
"5488486c-1418-4624-b87c-15ba950d210b",1,"Artifacts dropped","regkey","Class\{4F20E605-9452-4787-B793-D0204917CA58}","",1,1418217580,"","","","",""
"5488486c-47ec-4952-8e60-15ba950d210b",1,"Artifacts dropped","regkey","Class\{9B9A8ADB-8864-4BC4-8AD5-B17DFDBB9F58}","",1,1418217580,"","","","",""
"5488486c-a044-4c31-830c-15ba950d210b",1,"Artifacts dropped","regkey","HKLM\System\CurrentControlSet\Control\","",1,1418217580,"","","","",""
"54884899-35b8-48a3-9da2-15c6950d210b",1,"Other","text","Regin","",0,1418217625,"","","","",""

1 uuid event_id category type value comment to_ids date object_relation attribute_tag object_uuid object_name object_meta_category
2 5488466a-f0d0-4b58-89a5-15bc950d210b 1635 1 External analysis link https://www.f-secure.com/documents/996508/1030745/w32_regin_stage_1.pdf 0 20141210 1418217066
3 548847d8-01e0-4231-a739-15bb950d210b 1635 1 Payload installation md5 744c07e886497f7b68f6f7fe57b7ab54 Regin samples collected. 1 20141210 1418217432
4 548847d8-05f8-49e7-af79-15bb950d210b 1635 1 Payload installation md5 47d0e8f9d7a6429920329207a32ecc2e Regin samples collected. 1 20141210 1418217432
5 548847d8-3fbc-4a06-ba82-15bb950d210b 1635 1 Payload installation md5 2c8b9d2885543d7ade3cae98225e263b Regin samples collected. 1 20141210 1418217432
6 548847d8-9db0-4df6-8206-15bb950d210b 1635 1 Payload installation md5 26297dc3cd0b688de3b846983c5385e5 Regin samples collected. 1 20141210 1418217432
7 548847d8-a33c-41f3-9f7a-15bb950d210b 1635 1 Payload installation md5 01c2f321b6bfdb9473c079b0797567ba Regin samples collected. 1 20141210 1418217432
8 548847d8-c950-48eb-b960-15bb950d210b 1635 1 Payload installation md5 4b6b86c7fec1c574706cecedf44abded Regin samples collected. 1 20141210 1418217432
9 548847d9-1404-4331-ae3c-15bb950d210b 1635 1 Payload installation md5 90fecc6a89b2e22d82d58878d93477d4 Regin samples collected. 1 20141210 1418217433
10 548847d9-39dc-4247-b23d-15bb950d210b 1635 1 Payload installation md5 06665b96e293b23acc80451abb413e50 Regin samples collected. 1 20141210 1418217433
11 548847d9-3b28-449e-b527-15bb950d210b 1635 1 Payload installation md5 e94393561901895cb0783edc34740fd4 Regin samples collected. 1 20141210 1418217433
12 548847d9-4020-41da-b5f3-15bb950d210b 1635 1 Payload installation md5 db405ad775ac887a337b02ea8b07fddc Regin samples collected. 1 20141210 1418217433
13 548847d9-6340-44a0-8f33-15bb950d210b 1635 1 Payload installation md5 ffb0b9b5b610191051a7bdf0806e1e47 Regin samples collected. 1 20141210 1418217433
14 548847d9-8b18-4654-9766-15bb950d210b 1635 1 Payload installation md5 f3ffc2aaaa1e2ab55ec26ff098653347 Regin samples collected. 1 20141210 1418217433
15 548847d9-a564-4178-b8e6-15bb950d210b 1635 1 Payload installation md5 6662c390b2bbbd291ec7987388fc75d7 Regin samples collected. 1 20141210 1418217433
16 548847d9-afe0-4531-a4b0-15bb950d210b 1635 1 Payload installation md5 187044596bc1328efa0ed636d8aa4a5c Regin samples collected. 1 20141210 1418217433
17 548847d9-b63c-4c95-a2bd-15bb950d210b 1635 1 Payload installation md5 1800def71006ca6790767e202fae9b9a Regin samples collected. 1 20141210 1418217433
18 548847d9-e6fc-4b93-a773-15bb950d210b 1635 1 Payload installation md5 bfbe8c3ee78750c3a520480700e440f8 Regin samples collected. 1 20141210 1418217433
19 548847d9-fd54-4e49-909b-15bb950d210b 1635 1 Payload installation md5 89003e9a1ae635c97ebad07aebc67f00 Regin samples collected. 1 20141210 1418217433
20 548847da-1660-4562-a1f8-15bb950d210b 1635 1 Payload installation md5 b505d65721bb2453d5039a389113b566 Regin samples collected. 1 20141210 1418217434
21 548847da-2134-43d7-ba22-15bb950d210b 1635 1 Payload installation md5 8fcf4e53ece6111758a1dd3139dc7cad Regin samples collected. 1 20141210 1418217434
22 548847da-3e40-4ab2-a5eb-15bb950d210b 1635 1 Payload installation md5 1c024e599ac055312a4ab75b3950040a Regin samples collected. 1 20141210 1418217434
23 548847da-49c0-404d-ae42-15bb950d210b 1635 1 Payload installation md5 d240f06e98c8d3e647cbf4d442d79475 Regin samples collected. 1 20141210 1418217434
24 548847da-71ec-4b2b-bae5-15bb950d210b 1635 1 Payload installation md5 148c1bb9d405d717252c77593aff4bd8 Regin samples collected. 1 20141210 1418217434
25 548847da-9798-4b6d-b422-15bb950d210b 1635 1 Payload installation md5 ba7bb65634ce1e30c1e5415be3d1db1d Regin samples collected. 1 20141210 1418217434
26 548847da-ac78-474c-86fe-15bb950d210b 1635 1 Payload installation md5 b29ca4f22ae7b7b25f79c1d4a421139d Regin samples collected. 1 20141210 1418217434
27 548847da-c2d0-4d24-821e-15bb950d210b 1635 1 Payload installation md5 b269894f434657db2b15949641a67532 Regin samples collected. 1 20141210 1418217434
28 548847da-ffe4-4a90-9f2a-15bb950d210b 1635 1 Payload installation md5 22bfc970f707fd775d49e875b63c2f0c Regin samples collected. 1 20141210 1418217434
29 548847db-060c-4275-a0c7-15bb950d210b 1635 1 Payload installation md5 049436bb90f71cf38549817d9b90e2da Regin samples collected. 1 20141210 1418217435
30 54884832-2608-4fe6-959e-1ac6950d210b 1635 1 Artifacts dropped filename ser8uart.sys 0 20141210 1418217522
31 54884832-5134-460e-bea2-1ac6950d210b 1635 1 Artifacts dropped filename atdisk.sys 0 20141210 1418217522
32 54884832-6fb4-4c63-937c-1ac6950d210b 1635 1 Artifacts dropped filename rdpmdd.sys 0 20141210 1418217522
33 54884832-93a4-4fb0-aeba-1ac6950d210b 1635 1 Artifacts dropped filename usbclass.sys 0 20141210 1418217522
34 54884832-983c-4e4c-a692-1ac6950d210b 1635 1 Artifacts dropped filename pcidump.sys 0 20141210 1418217522
35 54884832-f2a8-46ff-be58-1ac6950d210b 1635 1 Artifacts dropped filename abiosdsk.sys 0 20141210 1418217522
36 5488486c-1418-4624-b87c-15ba950d210b 1635 1 Artifacts dropped regkey Class\{4F20E605-9452-4787-B793-D0204917CA58} 1 20141210 1418217580
37 5488486c-47ec-4952-8e60-15ba950d210b 1635 1 Artifacts dropped regkey Class\{9B9A8ADB-8864-4BC4-8AD5-B17DFDBB9F58} 1 20141210 1418217580
38 5488486c-a044-4c31-830c-15ba950d210b 1635 1 Artifacts dropped regkey HKLM\System\CurrentControlSet\Control\ 1 20141210 1418217580
39 5488488d-a4ec-4b40-bd7d-15c7950d210b 54884899-35b8-48a3-9da2-15c6950d210b 1635 1 External analysis Other text In this document we analyze a set of 32-bit samples which represents stage #1 of the complex threat that is known as Regin. Based on our analysis of the malware’s functionalities, this part of the Regin threat can be considered just a support module — its sole purpose is to facilitate and enable the operations of stage #2 by loading it and making it more difficult to detect by security products. Regin’s stage #1 targets the Windows platform and support various versions of the operating system, beginning with Windows NT 4.0. Based on our analysis, the samples may be classified into two categories: “pure” samples that do not feature any extra, non-malicious code; and “augmented” ones which feature malware code as part of another device driver. The existence of “augmented” samples indicates the intention of the attacker to remain undiscovered for as long as possible. When activated, samples of Regin stage #1 will retrieve encrypted content from specific locations of an already compromised system, map it into kernel memory and transfer control to it. In terms of technical sophistication, stage #1’s import resolution process is of particular interest, as the malware uses the unusual “trampoline” technique to mask the payload’s access to API functions. It is clear that this support component, that represents the initial stage of a very complex threat, has been instrumental in securing long-term persistence in the attacks that made use of this threat. Regin 0 20141210 1418217625
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@ -204,21 +204,6 @@
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"value": "In this document we analyze a set of 32-bit samples\r\nwhich represents stage #1 of the complex threat that is\r\nknown as Regin. Based on our analysis of the malwares\r\nfunctionalities, this part of the Regin threat can be\r\nconsidered just a support module — its sole purpose\r\nis to facilitate and enable the operations of stage #2\r\nby loading it and making it more difficult to detect by\r\nsecurity products.\r\nRegins stage #1 targets the Windows platform and\r\nsupport various versions of the operating system,\r\nbeginning with Windows NT 4.0. Based on our analysis,\r\nthe samples may be classified into two categories: “pure”\r\nsamples that do not feature any extra, non-malicious\r\ncode; and “augmented” ones which feature malware\r\ncode as part of another device driver. The existence of\r\n“augmented” samples indicates the intention of the\r\nattacker to remain undiscovered for as long as possible.\r\nWhen activated, samples of Regin stage #1 will\r\nretrieve encrypted content from specific locations of\r\nan already compromised system, map it into kernel\r\nmemory and transfer control to it. In terms of technical\r\nsophistication, stage #1s import resolution process is\r\nof particular interest, as the malware uses the unusual\r\n“trampoline” technique to mask the payloads access to\r\nAPI functions.\r\nIt is clear that this support component, that represents\r\nthe initial stage of a very complex threat, has been\r\ninstrumental in securing long-term persistence in the\r\nattacks that made use of this threat.",
"SharingGroup": [],
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"id": "96652",
"type": "text",