Did you just run into a download or a file on your computer that is digitally signed by Technology Calculations? Some of the security products refers to the detected files as Adware/PullUpdate and a variant of MSIL/Adware.PullUpdate.L.gen. The detection rate for the Technology Calculations files collected here is 23%. Please read on for more details.
You will typically see Technology Calculations when double-clicking to run the file. The publisher name shows up as the "Verified publisher" in the UAC dialog as the screenshot shows:

You can view the digital signature details for Technology Calculations with the following steps:
Here is a screenshot of a file that has been digitally signed by Technology Calculations:

As you can see in the screenshot above, the Windows OS states that "This digital signature is OK". This implies that the file has been published by Technology Calculations and that no one has tampered with the file.
If you click the View Certificate button shown in the screenshot above, you can see all the details of the certificate, such as when it was issued, who issued the certificate, how long it is valid, etc. You can also see the address for Technology Calculations, such as the street name, city and country.
VeriSign Class 3 Code Signing 2010 CA has issued the Technology Calculations certificates. You can also view the details of the issuer by clicking the View Certificate button shown in the screenshot above.
These are the Technology Calculations files I've gathered, thanks to the FreeFixer users.
| Detection Ratio | File Name |
|---|---|
| 19/56 | prompt.exe |
| 7/57 | prompt.exe |
| 5/56 | prompt.exe |
| 4/56 | prompt.exe |
| 8/57 | prompt.exe |
| 6/55 | prompt.exe |
| 14/57 | prompt.exe |
| 17/49 | prompt.exe |
| 17/55 | prompt.exe |
| 28/57 | prompt.exe |
Here is the detection names for the Technology Calculations files. I have grouped the detection names by each scanner engine. Thanks to VirusTotal for the scan results.
| Scanner | Detection Names |
|---|---|
| ALYac | Gen:Variant.Adware.PullUpdate.2 |
| AVG | Generic.EA4 |
| AVware | Trojan.Win32.Generic!BT, PullUpdate |
| Ad-Aware | Gen:Variant.Adware.PullUpdate.2 |
| Agnitum | PUA.PullUpdate! |
| AhnLab-V3 | PUP/Win32.PullUpdate |
| Antiy-AVL | Trojan/Win32.TSGeneric |
| Arcabit | Trojan.Adware.PullUpdate.2 |
| Avira | TR/Dropper.Gen, Adware/PullUpdate.97608 |
| Baidu-International | Adware.MSIL.PullUpdate.L, Adware.MSIL.PullUpdate.BH |
| BitDefender | Gen:Variant.Adware.PullUpdate.2 |
| Bkav | W32.HfsAdware.6C86 |
| Comodo | ApplicUnwnt |
| DrWeb | Adware.Yontoo.58 |
| ESET-NOD32 | a variant of MSIL/Adware.PullUpdate.L.gen, a variant of MSIL/Adware.PullUpdate.H |
| Emsisoft | Gen:Variant.Adware.PullUpdate.2 (B) |
| F-Secure | Gen:Variant.Adware.PullUpdate |
| Fortinet | Adware/PullUpdate |
| GData | Gen:Variant.Adware.PullUpdate.2 |
| Ikarus | Trojan.Dropper |
| K7AntiVirus | Adware ( 004b91ed1 ), Adware ( 004b97961 ), Adware ( 004ba4cd1 ) |
| K7GW | Adware ( 004b91ed1 ), Adware ( 004b5ffd1 ), Adware ( 004b97961 ), Adware ( 004ba4cd1 ) |
| Malwarebytes | PUP.Optional.PullUpdate |
| McAfee | Artemis!62804E19DBCD, Artemis!C67C13C7D349, Artemis!BD28099525AA, Artemis!5800C2312081, Artemis!8774C51D79C1 |
| McAfee-GW-Edition | Artemis!PUP, Artemis |
| MicroWorld-eScan | Gen:Variant.Adware.PullUpdate.2 |
| Panda | PUP/PullUpdate |
| Qihoo-360 | HEUR/QVM03.0.Malware.Gen |
| Rising | PE:Malware.RDM.38!5.2C[F1] |
| Sophos | Generic PUA KM, Speed Browser, Generic PUA MJ, Generic PUA LM, Generic PUA JG, Generic PUA OD (PUA) |
| Symantec | Trojan Horse, Trojan.Gen.2 |
| Tencent | Msil.Adware.Pullupdate.Wnme, Trojan.Win32.YY.Gen.18, Trojan.Win32.Qudamah.Gen.18, Msil.Adware.Pullupdate.Hxpx, Msil.Adware.Pullupdate.Sttw, Msil.Adware.Pullupdate.Eawy |
| TrendMicro | ADW_PULLUP |
| TrendMicro-HouseCall | Suspicious_GEN.F47V0413, Suspicious_GEN.F47V0228, ADW_PULLUP, Suspicious_GEN.F47V0108, Suspicious_GEN.F47V1115, Suspicious_GEN.F47V0326, Suspicious_GEN.F47V0321 |
| VIPRE | Trojan.Win32.Generic!BT, PullUpdate |
| ViRobot | Adware.Agent.82696[h] |
| Zillya | Adware.PullUpdate.Win32.1147 |
The detection percentage is based on that I have gathered 555 scan reports for the Technology Calculations files. 125 of these scan reports came up with some sort of detection. If you like, you can review the full details of the scan results by examining the files listed above.
The analysis is done on certificates with the following serial numbers: